Threat Research | Weekly Recap [14 Dec 2025]

Cybersecurity Threat Research ‘Weekly’ Recap: A critical unauthenticated deserialization RCE in React Server Components (React2Shell, CVE-2025-55182) is being weaponized for mass scanning and arbitrary code execution, prompting patches and WAF/runtime protections while defenders hunt for indicators (MINOCAT, SNOWLIGHT, HISONIC, XMRig). A broad surge of activity across loaders, backdoors, info stealers, phishing, ransomware, and APTs—featuring EtherRAT, GhostPenguin, NANOREMOTE, CastleRAT, ValleyRAT, GrayBravo, AshTag, AshenLepus, Group123, APT31, Salt Typhoon, GOLD_SALEM, Warlock, Makop, 01flip, Storm-0249, and others—underscores supply-chain abuse, credential theft, and geopolitical intrusions.
#React2Shell #CVE-2025-55182 #MINOCAT #SNOWLIGHT #HISONIC #XMRig #EtherRAT #GhostPenguin #NANOREMOTE #CastleRAT #ValleyRAT #GrayBravo #AshTag #AshenLepus #Group123 #APT31 #SaltTyphoon #GOLD_SALEM #Warlock #Makop #01flip #Storm_0249 #FrostBeacon #Shai_Hulud_2_0 #NexusRoute #RTO_Challan #DroidLock #PhantomStealer #AMOSStealer #Banshee #LummaStealer #JSCEAL #NoteGPT #MoneyMount #VSCodeExtensions

Read More
VolkLocker Ransomware Exposed by Hard-Coded Master Key Allowing Free Decryption

CyberVolk, a pro-Russian hacktivist group, has relaunched its VolkLocker ransomware-as-a-service, targeting Windows and Linux systems with notable design flaws that allow victims to decrypt files without paying. The group continues expanding its malicious offerings, including remote access tools, while leveraging Telegram for operations. #CyberVolk #VolkLocker #Telegram #RaaS…

Read More
Asahi Cyberattack Forces Shift to Zero-Trust Model, Delays Earnings by Over 50 Days

Asahi Group Holdings is considering establishing a dedicated cybersecurity unit following a ransomware attack that caused extensive operational and financial disruptions. The incident prompted a shift towards a zero-trust security model and highlights the importance of advanced cybersecurity measures in protecting corporate assets. #AsahiGroup #Ransomware #ZeroTrustSecurity…

Read More
Hamas-Affiliated APT Ashen Lepus Unveils AshTag Malware Suite for Wider Cyber-Espionage

A Hamas-affiliated group, Ashen Lepus, continues its persistent cyber-espionage activities amidst ongoing conflict, significantly upgrading its malware capabilities with the new AshTag suite. The group’s evolving tactics include sophisticated evasion techniques and expanded targeting across Arabic-speaking nations, emphasizing the strategic importance of their digital operations. #AshenLepus #AshTag…

Read More
SHADOW-VOID-042 Impersonates Trend Micro in Phishing Campaign to Breach Critical Infrastructure

A threat group impersonated Trend Micro to launch a targeted spear-phishing campaign against critical infrastructure, leveraging the vendor’s branding to deceive victims. This operation appears to be linked to the cybercriminal group Void Rabisu, showcasing a mix of old and new attack techniques. #SHADOWVOID042 #VoidRabisu…

Read More
CISA Adds Actively Exploited Sierra Wireless Router Flaw Enabling RCE Attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability in Sierra Wireless AirLink ALEOS routers to its Known Exploited Vulnerabilities list due to active exploitation. This flaw, CVE-2018-4063, allows remote code execution through malicious HTTP requests, posing a significant threat to impacted systems. #CISA #CVE2018-4063…

Read More
Cybersecurity News | Daily Recap [13 Dec 2025]

Daily Recap, the security landscape today spans zero-day exploits patched in Apple WebKit and active Gogs exploitation affecting hundreds of self-hosted instances, along with critical flaws in Varex Imaging, GDCM, and Johnson Controls iSTAR Ultra impacting medical and industrial systems. The report also highlights Lazarus Group and Ashen Lepus espionage campaigns, major data breaches at Coupang and Pierce County Library, and a surge of malware kits and phishing tools including PyStoreRAT, Agent Tesla, BlackForce, GhostFrame, InboxPrime AI, and DroidLock. #LazarusGroup #AshenLepus #Coupang #PierceCountyLibrary #PyStoreRAT #AgentTesla #BlackForce #GhostFrame #InboxPrimeAI #DroidLock #AppleWebKit #Gogs #VarexImaging #GDCM #JohnsonControls #AshTag

Read More
Cybersecurity News | Daily Recap [13 Dec 2025]

Daily Recap, active exploitation of GeoServer CVE-2025-58360 enables file reads, SSRF, and DoS alongside multiple React Server Component flaws (CVE-2025-55182 / React2Shell) that trigger RCE and prompt emergency patching by federal agencies. The round-up also notes a RasMan zero-day with unofficial 0Patch fixes, plus incidents such as Gladinet RCE, Notepad++ update-flaw, malicious VSCode extensions, Fieldtex data breach, ICO fines for LastPass, CodeRED outage, and other breaches and takedowns like MKVCinemas. #GeoServer #RasMan

Read More
Apple fixes two zero-day flaws exploited in ‘sophisticated’ attacks

Apple has issued emergency patches for two critical WebKit zero-day vulnerabilities exploited in targeted, highly sophisticated attacks on specific individuals. These vulnerabilities, tracked as CVE-2025-43529 and CVE-2025-14174, affected various Apple devices and were also addressed by Google Chrome in coordination with Apple. #WebKitVulnerabilities #TargetedAttacks

Read More
Apple Issues Security Updates After Two WebKit Flaws Found Exploited in the Wild

Apple has released security updates for multiple platforms to fix two critical vulnerabilities in WebKit that have been exploited in the wild, including one previously patched by Google Chrome. These flaws are believed to have been used in targeted spyware attacks, affecting a wide range of Apple devices and browsers. #WebKitVulnerabilities…

Read More