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Cyware Daily Threat Intelligence, March 13, 2025

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Daily Threat Briefing • Mar 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.

Top Malware Reported in the Last 24 Hours

Meet Elysium: New Ghost family variant

Netskope has discovered a new ransomware variant, Elysium, which is linked to the Ghost ransomware family. This group has been active since 2021 and targets critical infrastructure, healthcare, and government sectors by exploiting vulnerabilities in outdated applications. Elysium uses a multi-stage attack chain, employing tools like Cobalt Strike, BadPotato, GodPotato, Mimikatz, SharpShares, and WMI. Once the attackers gain access, they deploy the Elysium payload, which disrupts recovery efforts, terminates specific services, and attempts to stop Hyper-V virtual machines. 

APT37 debuts new spyware

A new Android surveillance tool called KoSpy has been discovered, which is believed to be the work of the North Korean APT group ScarCruft (aka APT37). The spyware has been found to target Korean and English-speaking users, using fake utility apps to infect devices. KoSpy was distributed through the Google Play Store and Firebase Firestore, with all associated apps and projects now removed or deactivated. The spyware has extensive data collection capabilities, including accessing SMS messages, call logs, device location, and more. It communicates with C2 servers, some of which are still online but do not respond to requests. 

UNC3886 targets Juniper routers

A Chinese threat group known as UNC3886 has infected various organizations' Juniper Networks routers with custom backdoors. Their attacks mainly targeted older Juniper MX routers that do not support security monitoring tools. UNC3886 initially accessed the routers through terminal servers with legitimate credentials and then infiltrated the routers' operating systems. Once inside, the attackers deployed customized versions of the TinyShell backdoor. The attackers were able to bypass security measures, specifically a feature in Junos OS designed to protect against unauthorized code. 

Top Vulnerabilities Reported in the Last 24 Hours

Facebook warns of FreeType bug

Facebook has warned about a vulnerability in the FreeType open-source font rendering library, which is used in millions of systems and services, including Linux, Android, and online platforms. The flaw, tracked as CVE-2025-27363, can lead to arbitrary code execution and has been reportedly exploited in attacks. It exists in all versions of FreeType up to 2.13 and was fixed in version 2.13.0. The vulnerability is due to an out-of-bounds write when parsing font subglyph structures related to TrueType GX and variable font files. 

Fortinet patches 18 flaws

Fortinet has released 17 new advisories for 18 vulnerabilities found in various products, including FortiOS, FortiProxy, FortiPAM, FortiSRA, FortiAnalyzer, FortiManager, FortiAnalyzer-BigData, FortiSandbox, FortiNDR, FortiWeb, FortiSIEM and FortiADC. High-severity vulnerabilities include an XSS flaw in FortiNDR (CVE-2023-48790), a code execution vulnerability in FortiOS, FortiProxy, FortiPAM, FortiSRA and FortiWeb (CVE-2024-45325), and a remote database password read issue in FortiSIEM (CVE-2023-40723). The medium-severity vulnerabilities can be exploited for code execution, command execution, arbitrary file write, and bypassing web firewall protections. A low-severity issue allowing unauthorized operations has also been patched.

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Cyware Daily Threat Intelligence, March 12, 2025

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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.

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Cyware Daily Threat Intelligence, March 10, 2025

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Mar 7, 2025

Cyware Daily Threat Intelligence, March 07, 2025

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Mar 6, 2025

Cyware Daily Threat Intelligence, March 06, 2025

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Cyware Daily Threat Intelligence, March 05, 2025

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Mar 4, 2025

Cyware Daily Threat Intelligence, March 04, 2025

In a digital masquerade, attackers are wielding trust as a weapon to breach elite targets. A highly targeted phishing campaign has struck a few UAE entities in aviation and satellite communications, deploying a new backdoor called Sosano. Using a hijacked email account from an Indian firm, the attackers sent polyglot PDFs, designed to exploit multiple formats. Your smartphone might be a gateway to more than just selfies in this lawless digital frontier. Google’s latest Android Security Bulletin confronts 44 vulnerabilities, with two actively exploited flaws in Cisco and Windows systems that could hand attackers the keys to your device. Patches are rolling out fast to help lock things down. Sometimes a simple click can unravel a digital Pandora’s box. A new ClickFix campaign is luring victims into running malicious PowerShell commands. It installs the Havoc post-exploitation framework, granting attackers remote access to the compromised device.

Mar 3, 2025

Cyware Daily Threat Intelligence, March 03, 2025

In a digital game of cat and mouse, cybercriminals are upping their ante with a new trick up their sleeve. The Black Basta and Cactus ransomware groups have armed themselves with BackConnect malware to maintain persistent control over compromised machines and exfiltrate sensitive data. Once inside, BackConnect—linked to the infamous QakBot loader—takes the reins, ensuring the attackers keep their grip even after initial access. Phishing emails are casting a wider net, and this time, they’re impersonating the taxman. FortiGuard Labs has uncovered a new wave of cyberattacks targeting Taiwanese companies with the sophisticated Winos 4.0 malware. Spread through phishing emails, the malware arrives via a malicious attachment posing as a tax inspection list. Winos 4.0 is a modular menace, boasting of multiple functionalities. Even the smallest chip can have a big impact when it comes to security. MediaTek revealed 10 newly discovered vulnerabilities in its chipsets, which power smartphones, tablets, AIoT devices, and smart TVs. Affected chipsets include the MT67xx, MT68xx, and MT69xx series. MediaTek has issued patches to manufacturers.

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Cyware Daily Threat Intelligence, February 28, 2025

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Feb 26, 2025

Cyware Daily Threat Intelligence, February 26, 2025

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Feb 25, 2025

Cyware Daily Threat Intelligence, February 25, 2025

Even security tools aren’t safe from exploitation. A massive malware campaign is abusing a vulnerable Windows driver from Adlice’s product suite to sneak in Gh0st RAT, with over 2,500 unique variants identified. When even protective software turns into a backdoor, no system is off-limits. Opposition activists and Ukrainian military entities are in the crosshairs. SentinelLABS uncovered a stealthy campaign using weaponized Excel documents to deliver new adaptations of PicassoLoader. This isn’t just cyber warfare, it’s an evolving espionage toolkit aimed at destabilizing governments. Oracle’s Agile Product Lifecycle Management software has a serious flaw. Now in CISA’s KEV catalog, this bug allows low-privileged attackers to execute arbitrary code, proving once again that supply chain vulnerabilities are prime real estate for cybercriminals.

Feb 21, 2025

Cyware Daily Threat Intelligence, February 21, 2025

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