Cyware Weekly Threat Intelligence, July 07–11, 2025

shutterstock 1661078329

Weekly Threat Briefing July 11, 2025

The Bad

You don’t need to visit shady corners of the internet to get infected, GitHub will do. A malware campaign is disguising Lumma Stealer as tools like Free VPN for PC, using polished project pages, Base64 payloads, and trusted Windows processes to slip past defenses. The Anatsa banking trojan slipped back into Google Play, targeting North American users with fake maintenance screens while logging keystrokes and automating fraudulent transactions. Crypto users are being lured in by fake AI and gaming firms offering too-good-to-be-true deals.

  • Cybercriminals are exploiting GitHub to distribute malware disguised as free software, specifically targeting users with applications like "Free VPN for PC" and "Minecraft Skin Changer." The malware dropper, named Launch.exe, utilizes sophisticated techniques such as obfuscation, process injection, and DLL side-loading to implant Lumma Stealer. This campaign involves hosting multiple malware samples on GitHub, where they employ Base64-encoded payloads concealed within seemingly harmless applications. The malware's execution process involves dynamic loading and the use of legitimate Windows processes, such as MSBuild.exe, to bypass security measures.
  • A social engineering campaign targets cryptocurrency users through fake AI, gaming, and Web3 firms, tricking them into downloading malware via Telegram and Discord. These fake companies use spoofed social media accounts and legitimate platforms like GitHub and Notion to appear credible. The campaign, active since at least March 2024, employs stealer malware like Realst and AMOS to siphon cryptocurrency and sensitive data from Windows and macOS systems. Attackers leverage verified and compromised X accounts to approach victims, urging them to test software in exchange for cryptocurrency payments.
  • A critical vulnerability (CVE-2025-47812) in Wing FTP Server, rated with a maximum severity score of 10.0, is being actively exploited. The flaw stems from improper handling of null ('\0') bytes in the server's web interface, enabling remote code execution. The vulnerability allows attackers to inject arbitrary Lua code into user session files, execute system commands with high privileges, and exploit anonymous FTP accounts. Threat actors have used the flaw for reconnaissance, creating persistence through new user accounts, and deploying malicious Lua files, though no evidence of remote desktop software installation has been confirmed. Over 8,000 publicly accessible Wing FTP Server devices are at risk, with 5,004 exposing their web interfaces. Most affected servers are located in the U.S., China, Germany, the U.K, and India.
  • Anatsa, a banking trojan, has once again infiltrated Google Play, disguised as a PDF viewer app that garnered over 50,000 downloads. Once installed, the malware activates and targets North American banking applications by displaying deceptive messages about scheduled maintenance, which obscures its malicious activities like keylogging and unauthorized transactions. The latest app, Document Viewer – File Reader, was removed by Google, following its detection of the trojan, which had been active between June 24 and 30, shortly after its release. The malware can execute keylogging, automate transactions, and steal sensitive information.
  • Researchers discovered nearly a dozen malicious Chrome extensions with 1.7 million downloads that track users, steal browser activity, and redirect to unsafe web addresses. These extensions pose as legitimate tools like color pickers, VPNs, volume boosters, and emoji keyboards, with many verified and highly rated on the Chrome Web Store. Malicious functionality is embedded in the background service worker of the extensions, capturing visited URLs and exfiltrating data to remote servers, potentially enabling cyberattacks. The malicious code was introduced via updates after the extensions were initially safe, possibly due to hijacking by external actors. Similar malicious extensions were found in the Microsoft Edge store, infecting over 600,000 users, bringing the total affected across browsers to 2.3 million.
  • A recent SEO poisoning campaign has targeted over 8,500 small and medium-sized business users by delivering malware disguised as popular tools like PuTTY and WinSCP. This campaign utilizes a known malware loader called Oyster, which installs a backdoor upon execution. Cybercriminals employ black hat SEO techniques to manipulate search results, directing victims to malicious websites that deliver various malware, including Vidar and Lumma Stealers. The campaign exploits AI-related keywords to enhance its reach, while also hijacking tech support searches for major brands, misleading users with fake phone numbers. Additionally, threat actors spread malware through deceptive ads on social media and fake websites impersonating legitimate services, facilitating the theft of sensitive information and targeting cryptocurrency wallets. 
New Threats

Recent DoNot APT campaigns reveal a shift toward diplomatic espionage, using custom malware to exfiltrate data and maintain persistence through scheduled tasks and obfuscated binaries. A botnet announcing itself with Hello-World is now sweeping through Taiwan. A new scraper botnet has been using repeated GET requests across ports 80–85. Batavia spreads through phishing emails disguised as contract requests. Later stages drop Delphi-based malware that shows fake documents while harvesting data.

  • Recent campaigns by the DoNot APT group show an expansion of targets to European diplomatic entities, emphasizing espionage motives. The group uses custom-built Windows malware (e.g., YTY and GEdit), delivered via spear-phishing emails or malicious documents, to achieve persistent surveillance and data exfiltration. A recent campaign targeted a European foreign affairs ministry, impersonating defense officials and using a malicious Google Drive link to deliver malware. The infection chain involved executing notflog.exe, deploying batch files, and creating scheduled tasks for persistence. The malware, LoptikMod, employs obfuscation techniques such as binary string encoding and selective packing to evade detection. 
  • Cybersecurity researchers identified a new variant of ZuRu malware targeting macOS users through a trojanized Termius app, leveraging modified loaders and C2 techniques. ZuRu malware has been active since 2021, initially spreading via fake websites mimicking legitimate macOS apps like iTerm2, and later through pirated software such as Microsoft Remote Desktop for Mac. The malware employs the Khepri post-exploitation toolkit, enabling remote control, persistence, and system reconnaissance on infected hosts. It uses altered code signatures to bypass macOS security protocols. The loader checks for existing malware versions, compares MD5 hash values, and downloads updates if necessary, potentially serving as an update mechanism or integrity check. The latest variant uses trojanized helper applications instead of older Dylib injection techniques, aiming to evade detection while maintaining similar tactics for persistence and communication.
  • GreyNoise has identified a new variant of a scraper botnet, primarily concentrated in Taiwan, which is detectable through unique behavioral fingerprints using JA4+ signatures. This botnet operates with a simple user-agent string, "Hello-World/1.0," and exhibits a traffic pattern characterized by repeated GET requests over ports 80-85, involving over 3,600 unique IPs globally. Notably, 54% of the botnet's infrastructure originates from Taiwanese networks, followed by Japan, Bulgaria, and France. This geographical concentration suggests potential compromises in local technologies or shared vulnerabilities among users. The analysis reveals that a significant portion of the detected IPs is classified as malicious or suspicious.
  • Researchers have uncovered critical vulnerabilities in the BlueSDK Bluetooth stack, potentially exposing millions of vehicles to remote hacking. These flaws enable attackers to execute remote code on car infotainment systems, allowing them to track vehicle locations, record audio from inside the car, and access phonebook data. The vulnerabilities can be exploited through a method known as the PerfektBlue attack, which has been demonstrated on recent models from manufacturers like Mercedes-Benz, Skoda, and Volkswagen. Vulnerabilities include Use-After-Free (CVE-2024-45434), improper validation (CVE-2024-45431), incorrect function termination (CVE-2024-45433), and incorrect function parameters (CVE-2024-45432).
  • An Iranian ransomware-as-a-service group, linked to Tehran's Pioneer Kitten, has resurfaced after a five-year hiatus, offering affiliates 80% profits for targeting U.S. and Israeli organizations. The updated malware, Pay2Key.I2P, incorporates Mimic ransomware capabilities and operates via the I2P network for anonymity. The group emphasizes anonymity to bypass ceasefire restrictions and continues cyberattacks despite geopolitical tensions. The malware was updated to target Linux systems, further incentivizing attacks against U.S. and Israeli targets.
  • Researchers have developed a novel Android exploit called TapTrap, which uses invisible UI animations to bypass permissions and trick users into performing risky actions. TapTrap works by launching a transparent activity over a malicious app, creating a visual mismatch between what users see and the actions registered by the system. The exploit leverages custom low-opacity animations to make risky prompts nearly invisible, increasing the likelihood of accidental user interaction. TapTrap remains unmitigated in Android 15 and 16, exposing devices unless animations are disabled via developer options or accessibility settings. 
  • A new spyware called Batavia has been targeting Russian industrial enterprises via phishing emails since July 2024, intensifying in early 2025. The phishing emails contain links disguised as contract attachments, downloading a malicious Visual Basic Encoded script (.VBE) file that profiles the system and sends data to a C2 server. The second stage deploys Delphi-based malware, which displays fake contracts while collecting system logs, documents, and screenshots, exfiltrating data to a separate server. The third-stage payload, 'javav.exe,' expands data collection to include additional file types, adds a startup shortcut for persistence, and potentially leads to a fourth payload ('windowsmsg.exe').
  • BERT is a newly emerged ransomware group targeting Windows and Linux platforms, with confirmed victims primarily in healthcare, technology, and event services across Asia, Europe, and the U.S. BERT employs PowerShell-based loaders and privilege escalation techniques to execute concurrent file encryption. The group’s Windows variant features straightforward code that terminates critical processes and encrypts files using AES, while the Linux variant operates with up to 50 threads for rapid encryption and can forcibly shut down ESXi virtual machines to hinder recovery efforts. BERT ransomware group may have derived code from REvil and Babuk ransomware, showcasing overlaps in tactics and tools.

Related Threat Briefings

Aug 22, 2025

Cyware Weekly Threat Intelligence, August 18–22, 2025

As cyber threats evolve, global takedown efforts are stepping up to safeguard digital ecosystems. INTERPOL’s Operation Serengeti arrested 1,209 cybercriminals across 18 African nations, recovering $97.4 million and dismantling over 11,000 malicious infrastructures. In another coordinated operation, U.S. authorities seized the Rapper Bot DDoS botnet, which had been active since 2021 and targeted 18,000 victims across 80 countries. The Python Package Index (PyPI) introduced defenses against domain resurrection attacks to prevent account hijacking and supply chain attacks. Berserk Bear hackers are wielding a seven-year-old Cisco flaw to infiltrate global critical infrastructure. Exploiting CVE-2018-0171, these FSB-linked attackers trigger device reloads and use custom SNMP tools. MuddyWater APT is targeting CFOs with spear-phishing, using Firebase-hosted phishing pages and custom CAPTCHAs. With a diplomat’s charm, malicious emails are smuggling XenoRAT into South Korea’s embassies via GitHub traps. Since March, this spearphishing spree has targeted European missions. Masquerading as an Australian electronics store, Cookie Spider’s malvertising campaign unleashed the AMOS malware on over 300 targets. Fraudsters posing as celebrity podcast reps are reeling in business owners with a bait. This podcast imposter scam lures victims into tech-check calls that grant remote access. A zero-day flaw has Apple racing to patch millions of devices with emergency iOS and iPadOS updates.

Aug 8, 2025

Cyware Weekly Threat Intelligence, August 04–08, 2025

In the wake of recent cyberattacks, the US federal judiciary is locking down sensitive court documents with a fortified approach to cybersecurity. Courts nationwide are enforcing stricter access controls, monitored handling procedures, and a mandatory IT security “scorecard” for annual self-assessments to pinpoint vulnerabilities. DARPA is raising the stakes at DEF CON, pitting seven AI-powered cyber reasoning systems against each other to secure the open-source software underpinning critical infrastructure. These autonomous tools, designed to detect and patch vulnerabilities in code vital to water systems and financial institutions, analyzed 7.8 million lines in preliminary rounds, catching 59% of synthetic flaws and uncovering real ones. Akira ransomware is striking with surgical precision, exploiting a suspected zero-day flaw in SonicWall SSL VPN devices, even those fully patched. Since mid-July 2025, attackers have used Virtual Private Server logins to bypass MFA, hitting multiple targets in rapid succession. A stealthy Python-based PXA Stealer is sweeping across 62 countries, pilfering sensitive data from unsuspecting victims. This infostealer campaign has exfiltrated hundreds of thousands of passwords and more. Phishing emails disguised as court summons are delivering a malicious payload to Ukrainian government and defense sectors, courtesy of UAC-0099. A cunning Android RAT, PlayPraetor, is sweeping through six countries, already compromising over 11,000 devices with its deceptive tactics. It masquerades as legitimate apps via fake Google Play Store pages and Meta Ads. ClickTok is luring TikTok Shop users into a trap with a crafty blend of phishing and malware. This global campaign deploys over 10,000 fake TikTok websites and 5,000 malicious apps, impersonating TikTok’s e-commerce platforms to steal cryptocurrency wallet credentials. Ghost Calls, a new evasion tactic, is turning Zoom and Microsoft Teams into covert channels for malicious activity, slipping past traditional defenses with ease.

Aug 1, 2025

Cyware Weekly Threat Intelligence, July 28–August 01, 2025

Picture this: a tool so fast it dissects malware at lightning speed, giving your team the edge in a digital arms race. Meet Thorium, the CISA’s latest open-source gem. This platform automates cyberattack investigations, processing over 1,700 jobs per second and ingesting 10 million files per hour per permission group. Meanwhile, as AI reshapes the battlefield, OWASP is arming professionals with fresh guidance to secure agentic AI applications driven by LLMs. It’s a playbook for locking down user authentication with OAuth 2.0, encrypting sensitive data, and bolstering supply chain security. Cybercriminals are donning digital disguises, impersonating trusted enterprises with fake Microsoft OAuth applications to steal credentials and bypass multi-factor authentication. Hackers exploited a critical SAP NetWeaver flaw to deploy the Auto-Color Linux malware. This malware, equipped with a rootkit and adaptive evasion tactics, adjusts its behavior based on user privileges. Operation CargoTalon, tied to threat cluster UNG0901, targeted organizations with EAGLET malware hidden in fake invoice files, quietly siphoning off sensitive data to a C2 server. A newly discovered cyberattack technique, dubbed Man in the Prompt, is turning browser extensions into unwitting accomplices in data theft from generative AI tools. DoubleTrouble is targeting users through Discord-hosted APKs, disguising itself as a legitimate app to slip past defenses. A stealthy Android banking trojan, RedHook, is targeting Vietnamese users through phishing sites mimicking trusted agencies. Spread via a malicious APK on an exposed AWS S3 bucket, it exploits accessibility services to steal credentials and banking details, with over 500 infections tied to Chinese-speaking actors.

Jul 25, 2025

Cyware Weekly Threat Intelligence, July 21–25, 2025

The BlackSuit ransomware crew just lost its home turf. As part of Operation Checkmate, international law enforcement has seized the group’s dark web extortion and negotiation sites. New York is taking aim at cyber threats to its water systems. A newly proposed set of regulations outlines mandatory IT and OT cybersecurity measures for water and wastewater infrastructure, aligning with federal guidelines and introducing funding to support modernization across the state. Not every scam needs sophistication, sometimes all it takes is a lonely heart and a convincing profile picture. SarangTrap, a massive mobile spyware campaign, is luring victims on Android and iOS through fake dating apps. Storm-2603 is slipping through SharePoint’s cracks and locking the doors behind it. The suspected China-based threat group is exploiting two SharePoint vulnerabilities to deploy Warlock ransomware. A trusted source turned treacherous. Hackers launched a supply chain attack on Arch Linux by slipping malware into three AUR packages. These packages silently deployed a RAT that gave attackers persistent control over infected machines. A browser tweak here, a fake mod there, and suddenly your crypto wallet spills its secrets. In a new campaign, the Scavenger trojan exploits DLL Search Order Hijacking to infiltrate password managers and wallets. A new RaaS group called Chaos is conducting high-impact ransomware campaigns through a number of tactics, using remote management tools for long-term access. Mimo is getting stealthier and greedier. The financially motivated group has moved from targeting Craft CMS to Magento, exploiting PHP-FPM vulnerabilities to deploy malware via fileless techniques.

Jul 18, 2025

Cyware Weekly Threat Intelligence, July 14–18, 2025

A keyboard army just lost its command center. Europol’s Operation Eastwood has crippled the pro-Russian hacktivist group NoName057(16). The international effort, involving law enforcement from 12 nations, led to two arrests and the takedown of over 100 servers linked to the group’s “DDoSia” project. Britain wants bug-hunters on its side. The NCSC has launched the Vulnerability Research Initiative, a new program inviting external researchers to help uncover security flaws in widely used hardware and software. Cisco Talos uncovered a MaaS campaign targeting Ukraine, where attackers used Amadey malware and GitHub repositories to stage payloads. The setup mimics tactics from a SmokeLoader phishing operation. Over 600 malicious domains are distributing fake Telegram APKs to unsuspecting users. Most are hosted in China and exploit the Janus vulnerability in Android. Users who trusted GravityForms’ official site got more than they expected. A supply chain attack injected backdoors into plugin files distributed via the official site and Composer. The H2Miner botnet has resurfaced with updated scripts that mine Monero, kill rival malware, and deploy multiple malware. Bundled with it is Lcrypt0rx, a likely AI-generated ransomware that exhibits sloppy logic, malformed syntax, and weak encryption using XOR. A new Konfety variant uses the same package name as a legitimate app but hides the real payload in a lookalike version distributed through third-party stores. One sandbox escape makes five. Google patched a high-severity Chrome flaw that lets attackers break out of the browser’s sandbox using crafted HTML and unvalidated GPU commands.

Jul 4, 2025

Cyware Weekly Threat Intelligence, June 30–July 04, 2025

It looked like a crypto investment until €460 million vanished. Operation BORRELLI dismantled a global fraud ring that scammed over 5,000 victims, with arrests in Madrid and the Canary Islands. A fake workforce was quietly funding a real regime. The DoJ disrupted a North Korean scheme where remote IT workers used stolen identities to get jobs at over 100 U.S. companies. The operation funneled $5 million to the DPRK, exposed military tech, and led to raids across 16 states. Sometimes, the app that looks harmless is just the decoy. Recent investigations uncovered massive Android fraud schemes, including IconAds and Kaleidoscope, which used icon hiding, fake apps, and third-party distribution to flood ad networks with billions of fake requests. Two different names - same tactics, same tools, same playbook. Researchers have found striking overlaps between TA829 and the lesser-known UNK_GreenSec, both of which use phishing lures and REM Proxy services through compromised MikroTik routers. It starts with what looks like an official message from the Colombian government. Behind it is a phishing campaign delivering DCRAT, a modular remote access tool designed for theft and system control. Botnet operators are now turning broken routers into system wreckers. RondoDox is a new Linux-based botnet exploiting CVE-2024-3721 and CVE-2024-12856 to gain remote access to TBK DVRs and Four-Faith routers. That Zoom update request on Telegram? It could be a trap. North Korean actors are deploying NimDoor malware to infiltrate Web3 and crypto platforms using social engineering via Telegram. Google has patched CVE-2025-6554, a critical zero-day in Chrome’s V8 engine that was exploited in the wild to execute arbitrary code.

Jun 27, 2025

Cyware Weekly Threat Intelligence, June 23–27, 2025

A Common Good Cyber Fund was launched to support non-profits delivering critical cybersecurity services for public benefit. The fund is backed by the U.K and Canada, with G7 leaders endorsing similar initiatives. A phishing email is all it takes to breach critical infrastructure. The OneClik APT campaign is targeting energy and oil sectors using Microsoft ClickOnce to deliver a .NET loader and Golang backdoor. A handful of outdated routers is all it takes to build a persistent espionage network. The LapDogs campaign is targeting SOHO devices with a custom backdoor called ShortLeash, giving attackers root access and control over compromised systems. A familiar package name could be hiding far more than useful code. North Korean actors behind the Contagious Interview campaign have published 35 malicious npm packages, including keyloggers and multi-stage malware. A fake Windows update might just be the start of something worse. The EvilConwi campaign is abusing ConnectWise ScreenConnect to deliver signed malware through tampered installers. Encrypted messaging apps aren’t immune to state-backed malware delivery. APT28 is targeting Ukrainian government entities via Signal, sharing macro-laced documents that deploy a backdoor named Covenant. Some WordPress plugins are doing a lot more than extending site functionality. Researchers uncovered a long-running malware campaign that uses rogue plugins to skim credit card data, steal credentials, and manage backend systems on infected sites.

Jun 20, 2025

Cyware Weekly Threat Intelligence, June 16–20, 2025

As cybercriminals weave intricate webs in the digital underworld, global defenders are cutting through the chaos. Six nations toppled Archetyp Market, a darknet drug bazaar with €250 million ($288 million) in Monero deals, nabbing its admin and vendors while seizing €7.8 million ($9 million) in assets. The U.K unveiled a Cyber Growth Action Plan, injecting £16m ($21.2m) to fortify its £13.2bn ($17.5bn) cybersecurity industry after attacks bled retailers like M&S. Stateside, the U.S. reclaimed $225 million in crypto from investment scams, marking the Secret Service’s biggest digital heist bust yet. Cloud services are being quietly turned into covert attack channels. The Serpentine#Cloud campaign is abusing Cloudflare Tunnels and Python to deploy fileless malware via invoice-themed phishing lures. A popular WordPress plugin is exposing sites to full takeover. It affects the AI Engine plugin, impacting over 100,000 websites and opening the door to site-wide compromise. An official-looking email from the tax department may be anything but. Silver Fox APT is targeting Taiwanese users with phishing emails posing as the National Taxation Bureau, delivering malware like Winos 4.0, HoldingHands RAT, and Gh0stCringe. A new Android trojan is turning devices into data-harvesting tools under attackers’ full control. Attributed to the LARVA-398 group, AntiDot has infected thousands of devices through phishing and malicious ads. A fake job offer could now come bundled with custom-built spyware. PylangGhost is targeting crypto professionals in India. Delivered through spoofed job sites, the malware includes registry tampering, remote control, and data exfiltration modules aimed at compromising Windows systems. One compromised travel site is now a launchpad for infostealer infections. A new ClickFix variant, LightPerlGirl, is using fake Cloudflare CAPTCHA prompts and clipboard hijacking to deliver the Lumma infostealer.

Jun 6, 2025

Cyware Weekly Threat Intelligence, June 02–06, 2025

Authorities have taken down a major hub for stolen financial data. The DOJ seized approximately 145 domains associated with the BidenCash marketplace, which had evolved from a small credit card shop in 2022 into a massive hub for stolen payment data. In a move to reinforce Europe’s cyber defenses, Microsoft is stepping in with strategic support. The newly launched European Security Program offers EU governments free access to AI-driven threat intelligence, vulnerability alerts, and guidance to counter attacks from state-sponsored actors. Not all GitHub projects are built with good intentions. Researchers uncovered a widespread campaign involving more than 130 repositories booby-trapped with malware disguised as game cheats, hacking tools, and utilities. A free software download could end up costing your entire crypto wallet. ViperSoftX is back in circulation, targeting crypto users with malicious PowerShell scripts bundled into cracked apps, keygens, and torrent packages. Some attackers mine crypto, JINX-0132 mines misconfigurations. This threat actor is running a stealthy cryptojacking campaign against DevOps platforms, exploiting exposed defaults and overlooked RCE flaws. Destruction masquerading as maintenance tools is hitting Ukraine’s infrastructure. Researchers attributed a new wiper malware called PathWiper to a Russia-linked APT group, targeting critical systems by leveraging legitimate administrative frameworks. A few swapped letters could be all it takes to get owned. A new supply chain attack targets Python and npm developers through typo-squatting and name confusion. A new Android banking trojan, named Crocodilus, has emerged in the threat landscape. It masquerades as legitimate apps like Google Chrome and uses overlay attacks to steal credentials from financial apps.

May 30, 2025

Cyware Weekly Threat Intelligence, May 26–30, 2025

Under the hood of vulnerability management, NIST just added a sharper diagnostic tool. The new Likely Exploited Vulnerabilities metric offers deeper insight into which CVEs are likely being used in the wild, complementing EPSS with more contextual signals. Digital warfare is no longer a future threat, it's a current investment. The U.K. Ministry of Defence has unveiled a £1 billion Cyber and Electromagnetic Command to protect military networks and support offensive cyber missions. With AI-driven systems like the Digital Targeting Web in development, the goal is seamless coordination across weapons platforms. A quiet but relentless campaign has been unfolding across multiple industries. The Chinese group Earth Lamia is targeting finance, government, logistics, and more by exploiting known web app vulnerabilities. APT41 hides malware commands where no one’s looking: your calendar. In a creative twist on C2 infrastructure, China-backed APT41 embedded encrypted instructions inside Google Calendar events. AyySSHush doesn’t make noise, it builds armies. More than 9,000 ASUS routers have been compromised by this botnet, which quietly slips in through a CVE-2023-39780 exploit. Fake CAPTCHA prompts are now doing more than testing if you're human—they're installing malware. EDDIESTEALER, a new Rust-based infostealer, spreads through deceptive CAPTCHA pages that trigger malicious PowerShell scripts. Threat actors are wrapping their tools in layers of obfuscation, and DOUBLELOADER is no exception. This new backdoor uses the ALCATRAZ obfuscator—once seen in the game-hacking scene—to disguise its presence. A new Go-based botnet called PumaBot is clawing its way through Linux IoT devices. It brute-forces SSH credentials, impersonates Redis files for stealth, and deploys rootkits to mine crypto and steal credentials.