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Cyware Daily Threat Intelligence

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Daily Threat Briefing • July 1, 2022

In the latest digital salvo, one of the largest book publishers in the U.S. has found itself caught in the cyberattack whirlwind. While the victims haven’t disclosed much details about the attacks, however, all the information about a sneaky backdoor lurking at vulnerable Exchange servers since over the past 15 months has been made public. It could successfully penetrate the networks of at least 24 firms.

Federal agencies have been ordered to patch their Linux servers against PwnKit within three weeks. The most astounding part is that it remained hidden for over 12 years since pkexec's first release.

Top Breaches Reported in the Last 24 Hours

DDoS hits Norway's websites

Hackers rattled the IT infrastructure of Norway’s public and private sector websites in a DDoS attack, forcing them to go offline. Officials claim pro-Russian cybercriminal group Killnet was behind the act. The online banking identification service and the Norwegian Labor Inspection Authority were among the organizations affected by the attack.

PHI data exposed via radiology facility

Charlotte Radiology disclosed a breach event that culminated in hackers stealing the PHI of patients, such as names, addresses, SSNs, insurance information, and medical record numbers. A similar breach has come to the light at OrthoNebraska wherein hackers took over an email account to obtain PHI.

**Macmillan shuts down systems **

Macmillan, U.S., experienced a massive cyber intrusion in its network, knocking its IT systems offline. Its sales team reportedly warned clients and customers about the delay in book shipments. It’s not been disclosed whether it was a ransomware threat and if any data was stolen.

Top Malware Reported in the Last 24 Hours

Free decryptor released for Hive

KISA, South Korea’s cybersecurity agency, has dropped a free decryptor for Hive ransomware. The decryptor works on ransomware versions from v1 to v4. Hive ransomware was ranked in the list of top 10 ransomware strains by revenue in 2021. According to researchers, more than 95% of the keys used for encryption could be recovered using the suggested method.

Fake IIS Module was a backdoor

A new stealthy malware, dubbed SessionManager, has come to light infecting Microsoft Exchange servers after their compromise. For the past 15 months, the backdoor has been posing as a legitimate module for Internet Information Services (IIS). Kaspersky has identified 34 servers across 24 organizations impacted by the malicious backdoor.

Top Vulnerabilities Reported in the Last 24 Hours

CISA added another critical Linux flaw

The CISA warned against a high-severity Linux vulnerability, PwnKit, to its list of bugs exploited in the wild. Tracked as CVE-2021-4034, the vulnerability was found in the Polkit's pkexec component used by the likes of Ubuntu, Fedora, Debian, and CentOS. Qualys, which reported the bug, has urged Linux admins to prioritize patching vulnerable servers via the GitLab repository.

Fixing a critical vulnerability in Gitlab

Gitlab addressed a critical flaw in all of its versions, from 14.0 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1. Assigned CVE-2022-2185, the flaw could be abused by an authenticated user to deploy a maliciously crafted project leading to RCE. Besides, the recent update also ??patched other flaws, including two cross-site scripting bugs. Federal agencies have been ordered to fix the security hole in three weeks.

Related Threat Briefings

Mar 21, 2025

Cyware Daily Threat Intelligence, March 21, 2025

A stealthy cyber campaign briefly surfaced before vanishing. Researchers uncovered a public web server tied to a campaign targeting South Korean entities, hosting a Rust-based payload delivering Cobalt Strike Cat alongside open-source hacking tools. The infrastructure disappeared within 24 hours but revealed a target list of over 1,000 Korean domains. A backup tool vulnerability is now a fast track for attackers. CISA issued a warning for a path traversal flaw in Nakivo Backup and Replication, which is being actively exploited to execute code remotely and access sensitive enterprise data. The vulnerability has also been added to the KEV catalog. Fake ads are turning Semrush into phishing bait. A malicious ad campaign is tricking users into visiting fraudulent Semrush login pages, stealing Google credentials by forcing victims to use the “Log in with Google” option on spoofed pages.

Mar 20, 2025

Cyware Daily Threat Intelligence, March 20, 2025

Cybercriminals don’t just break in; they move in and redecorate. The DollyWay malware campaign, active since 2016, has now compromised over 20,000 WordPress sites, according to GoDaddy. By February 2025, it was redirecting 10 million users each month to scam sites. Originally a ransomware operation, it has evolved into a redirection scam using the VexTrio and LosPollos affiliate networks. Hackers have found a new disguise for malware—virtual hard disk files. Threat actors are distributing VenomRAT through phishing emails with .VHD files masked as purchase orders. These files help the malware evade detection while a hidden batch script self-replicates, maintains PowerShell persistence, and steals data using HVNC and Pastebin-based C2 communication. Meanwhile, a year-old sophisticated phishing campaign has shifted gears. After successfully tricking Windows users with fake Microsoft security alerts on windows[.]net, attackers are now targeting macOS users. For detailed Cyber Threat Intel, click ‘Read More’.

Mar 19, 2025

Cyware Daily Threat Intelligence, March 19, 2025

Cyber threats are increasingly targeting sensitive industries and posing national security concerns. Ukraine’s CERT-UA has raised alarms about a wave of cyberattacks leveraging the DarkCrystal RAT to target defense industry professionals and military entities. The attackers are using Signal messenger to send phishing messages disguised as trusted contacts, luring victims into opening a fake PDF file containing a malware dropper. When even your AI assistant can be tricked into working for hackers, the stakes couldn’t be higher. Security researchers have uncovered a supply chain attack known as the 'Rules File backdoor,' which compromises AI-powered code editors like GitHub Copilot and Cursor. Meanwhile, in the healthcare sector, PoC exploits have surfaced for vulnerabilities in Sante PACS servers. These flaws, including CVE-2025-2263 through CVE-2025-2284, could enable unauthorized data access and system disruption. For detailed Cyber Threat Intel, click ‘Read More’.

Mar 18, 2025

Cyware Daily Threat Intelligence, March 18, 2025

Cybercriminals are getting craftier, with Microsoft uncovering StilachiRAT, a stealthy malware that steals crypto, spies on systems, and evades detection. It targets digital wallets, browser data, and RDP sessions while maintaining persistence through Windows services. Meanwhile, a year-old SSRF flaw in ChatGPT (CVE-2024-27564) is under active exploitation, with over 10,000 attack attempts in a week, mainly targeting US financial and government entities. Phishers are now exploiting Microsoft 365 infrastructure in a BEC campaign, tricking users with fake support notifications and fraudulent call centers. Attackers collect credentials and take over accounts while avoiding detection. As AI vulnerabilities, RATs, and phishing tactics evolve, businesses must stay ahead to protect sensitive data. For detailed Cyber Threat Intel, click ‘Read More’.

Mar 17, 2025

Cyware Daily Threat Intelligence, March 17, 2025

The Black Basta gang has cooked up a relentless new tool. Its automated brute-forcing framework has been relentlessly probing edge networking devices since 2023, zeroing in on widely used edge networking devices. Something sinister was brewing in the PyPI repository. Multiple fraudulent packages racked up tens of thousands of downloads and hid a nasty secret: code designed to siphon cloud access tokens. However, the packages have been removed. Coinbase users are getting hit with a scam that’s all polish and bad intentions. Dressed up as an official notice about a court-ordered shift to self-custodial wallets, it nudges recipients to set up a new wallet with a recovery phrase - except it’s a trap, pre-controlled by the attackers.

Mar 14, 2025

Cyware Daily Threat Intelligence, March 14, 2025

A new ransomware group is making waves with tactics reminiscent of LockBit. Mora_001 has been exploiting Fortinet vulnerabilities to gain access to networks. Subsequently, it deploys its SuperBlack ransomware, ensuring persistent control before encrypting critical systems. GitLab users should patch now as critical authentication flaws surface. Two newly discovered GitLab vulnerabilities could allow attackers to impersonate users, potentially leading to data breaches and privilege escalation. Security updates have been released to mitigate the risk. Cybercriminals are faking Clop ransomware attacks to scam businesses. Fraudsters are posing as the Clop ransomware gang, fabricating extortion claims to trick victims into paying ransoms for non-existent data breaches.

Mar 13, 2025

Cyware Daily Threat Intelligence, March 13, 2025

A new spyware is lurking in fake apps, and it’s tied to North Korea. KoSpy, a newly discovered Android surveillance tool, is believed to be the work of APT37 and has been targeting Korean and English-speaking users. Distributed via Google Play Store and Firebase Firestore, the spyware could access a plethora of information. Juniper routers are being turned into stealthy backdoors. The Chinese threat group UNC3886 has infiltrated older Juniper MX routers, deploying customized TinyShell backdoors to evade detection. By accessing devices via terminal servers with legitimate credentials, the attackers bypassed Junos OS security protections, allowing persistent access to compromised networks. A widely used font library is now a security risk. Facebook has warned of a critical flaw in FreeType. The bug, caused by an out-of-bounds write, can lead to arbitrary code execution and has been exploited in attacks.

Mar 12, 2025

Cyware Daily Threat Intelligence, March 12, 2025

Copy, paste, and lose everything - MassJacker turns a simple action into a costly mistake. The operation leverages 778,000 fraudulent wallet addresses to siphon digital assets from unsuspecting victims. It has targeted victims by replacing copied cryptocurrency wallet addresses with those controlled by attackers. Exploited in the wild and patched just in time. Microsoft has released security updates fixing 57 vulnerabilities, including six zero-days actively exploited by attackers. The update also addresses 17 Edge browser vulnerabilities, reinforcing the critical need for immediate patching before these flaws can be leveraged for malicious purposes. A botnet is turning home routers into attack platforms, and there’s still no fix in sight. The Ballista botnet is actively exploiting a remote code execution flaw in TP-Link Archer routers, allowing attackers to inject commands without authentication. With thousands of compromised devices and growing, the botnet uses Tor domains for stealth and has been traced back to an Italian-based threat actor.

Mar 11, 2025

Cyware Daily Threat Intelligence, March 11, 2025

A new ransomware strain isn’t just locking up files, it’s locking out hope of recovery. Researchers uncovered EByte Ransomware, a Golang-based malware that’s actively targeting Windows systems with advanced cryptographic techniques, making decryption nearly impossible without the attackers' key. A simple-looking PDF is all it takes for attackers to hijack your system. A new malware strain, Phantom Goblin, is being spread through RAR attachments in phishing campaigns, tricking users into opening a malicious LNK file disguised as a document. It also abuses VSCode tunnels for remote access. Attackers don’t need new tricks when unpatched systems do the job for them. The CISA has flagged five new vulnerabilities under active exploitation, affecting Advantive VeraCore and Ivanti Endpoint Manager. The VeraCore flaw exploitation is linked to a likely Vietnamese threat group, while the Ivanti EPM vulnerabilities allow attackers to coerce credentials for further access.

Mar 10, 2025

Cyware Daily Threat Intelligence, March 10, 2025

When cybercriminals upgrade their arsenal, staying hidden becomes easier than ever. Several ransomware and cybercrime groups are leveraging the Ragnar Loader malware toolkit to maintain long-term access to compromised systems. Constantly evolving with new features, Ragnar Loader has become more modular and harder to detect. A single flaw in a widely used API almost handed attackers full control over vulnerable applications. The Volt API for Livewire recently patched a critical remote code execution vulnerability. The issue has been fixed in version 1.7.0, and users are strongly urged to update to prevent exploitation. A billion devices, a hidden backdoor, and tens of undocumented commands that could change everything. Security researchers have uncovered a major issue in ESP32 revealing 29 undocumented commands that attackers could exploit for spoofing devices, unauthorized data access, and long-term persistence. This vulnerability raises concerns over supply chain security, as OEMs could unknowingly ship compromised devices.

Mar 7, 2025

Cyware Daily Threat Intelligence, March 07, 2025

Step right up to the slickest show in the digital shadows, where EncryptHub is running the ring. This rising cybercrime crew is dazzling victims across platforms like QQ Talk, WeChat, and Google Meet with trojanized apps and clever multi-stage attack chains. They’re even teasing a new act called EncryptRAT to keep their audience on edge. Something wicked is crashing the WordPress party, and it’s not on the guest list. Over 1,000 sites have been slipped a nasty surprise, planting backdoors that swing wide open for hackers. These uninvited intruders are ready to sneak back in and turn the festivities into a free-for-all. These dusty old cameras are stealing the spotlight, but it’s a scene straight out of a cyber horror flick. A critical flaw in Edimax IC-7100 IP cameras has botnets buzzing with excitement, exploiting shaky default passwords. They’re staging a takeover, dropping Mirai malware to keep the chaos rolling.

Mar 6, 2025

Cyware Daily Threat Intelligence, March 06, 2025

Social media’s open doors are proving a playground for malware with a Middle Eastern twist. Desert Dexter, a sly campaign, has been hitting the Middle East and North Africa with a tweaked AsyncRAT. It’s hunting cryptocurrency wallets and chatting with a Telegram bot, spreading through legit file-sharing accounts and Telegram channels. A WordPress plugin’s chatty nature just turned into a hacker’s dream. A critical flaw in the Chaty Pro plugin, used by tens of thousands of websites, lets attackers upload malicious files thanks to lax security checks. Left unpatched, it’s a fast track to site takeovers. LinkedIn’s polished veneer is getting a malware makeover, and it’s a convincing act. Cofense spotted a campaign mimicking LinkedIn InMail, complete with branding and a sales director’s pitch for a quote - though the person’s real, the company’s fake. Those “Read More” and “Reply To” buttons? They’re a one-way ticket to the ConnectWise RAT, sidestepping the usual phishing playbook for something nastier.