APT

Pierluigi Paganini August 21, 2025
FBI: Russia-linked group Static Tundra exploit old Cisco flaw for espionage

FBI warns FSB-linked group Static Tundra is exploiting a 7-year-old Cisco IOS/IOS XE flaw to gain persistent access for cyber espionage. The FBI warns that Russia-linked threat actor Static Tundra exploits Simple Network Management Protocol (SNMP) and end-of-life networking devices running an unpatched vulnerability (CVE-2018-0171) in Cisco Smart Install (SMI) to target organizations in the […]

Pierluigi Paganini August 16, 2025
Taiwan Web Infrastructure targeted by APT UAT-7237 with custom toolset

APT group UAT-7237, linked to UAT-5918, targets web infrastructure in Taiwan using customized open-source tools to maintain long-term access. A Chinese-speaking advanced persistent threat (APT) group, tracked as UAT-7237, has been observed targeting web infrastructure entities in Taiwan using customized versions of open-sourced tools with an aim to establish long-term access within high-value victim environments. […]

Pierluigi Paganini August 13, 2025
Charon Ransomware targets Middle East with APT attack methods

New Charon ransomware targets Middle East public sector and aviation, using APT-style tactics, EDR evasion, and victim-specific ransom notes. Cybersecurity researchers have discovered a new campaign that employs a previously undocumented ransomware family called Charon to target the Middle East’s public sector and aviation industry. The threat actor behind the activity, according to Trend Micro, […]

Pierluigi Paganini August 12, 2025
Researchers cracked the encryption used by DarkBit ransomware

Researchers at cybersecurity firm Profero cracked DarkBit ransomware encryption, allowing victims to recover files for free. Good news for the victims of the DarkBit ransomware, researchers at cybersecurity firm Profero cracked the encryption process, allowing victims to recover files for free without paying the ransom. However, at this time, the company has yet to release […]

Pierluigi Paganini August 07, 2025
CERT-UA warns of UAC-0099 phishing attacks targeting Ukraine’s defense sector

Ukraine’s CERT-UA warns of phishing attacks by UAC-0099 targeting defense sectors, using malware like MATCHBOIL, MATCHWOK, and DRAGSTARE. Ukraine’s CERT-UA warns of phishing attacks by threat actor UAC-0099 targeting government and defense sectors, delivering malware like MATCHBOIL and DRAGSTARE. The National Cyber Incident, Cyber Attack, and Cyber Threat Response Team CERT-UA investigated multiple attacks against […]

Pierluigi Paganini August 04, 2025
Nation-state group CL-STA-0969 targeted Southeast Asian telecoms in 2024

State-backed group CL-STA-0969 hit Southeast Asian telecoms in 2024, targeting critical infrastructure, says Palo Alto Networks’ Unit 42. Palo Alto Networks reported that a nation-state actor, tracked as CL-STA-0969, targeted telecom firms in Southeast Asia, with attacks on critical infrastructure from February to November 2024. Threat actor CL-STA-0969 overlaps with the China-linked cyber espionage group […]

Pierluigi Paganini August 01, 2025
ToolShell under siege: Check Point analyzes Chinese APT Storm-2603

Storm-2603 group exploits SharePoint flaws and uses a custom C2 framework, AK47 C2, with HTTP- and DNS-based variants named AK47HTTP and AK47DNS. Check Point Research is tracking a ToolShell campaign exploiting four Microsoft SharePoint flaws, linking it to China-nexus groups APT27, APT31, and a new cluster, Storm-2603. The researchers pointed out that Storm-2603’s goals remain […]

Pierluigi Paganini July 31, 2025
Russia-linked APT Secret Blizzard targets foreign embassies in Moscow with ApolloShadow malware

Russia-linked Secret Blizzard targets foreign embassies in Moscow via ISP-level AitM attacks, deploying custom ApolloShadow malware. Microsoft researchers uncovered a cyberespionage campaign by the Russia-linked APT group Secret Blizzard (aka Turla, Snake, Uroburos, Waterbug, Venomous Bear and KRYPTON)  targeting foreign embassies in Moscow. The threat actor uses an adversary-in-the-middle (AiTM) method at the ISP level to deploy custom malware called ApolloShadow. This […]

Pierluigi Paganini July 28, 2025
China-linked group Fire Ant exploits VMware and F5 flaws since early 2025

China-linked group Fire Ant exploits VMware and F5 flaws to stealthily breach secure systems, reports cybersecurity firm Sygnia. China-linked cyberespionage group Fire Ant is exploiting VMware and F5 vulnerabilities to stealthily access secure, segmented systems, according to Sygnia. Since early 2025, the group has targeted virtualization and networking infrastructure, primarily VMware ESXi and vCenter environments. […]

Pierluigi Paganini July 23, 2025
Microsoft linked attacks on SharePoint flaws to China-nexus actors

Microsoft linked SharePoint exploits to China-nexus groups Linen Typhoon, Violet Typhoon, and Storm-2603, active since July 7, 2025. Microsoft confirmed that China-linked groups Linen Typhoon, Violet Typhoon, and Storm-2603 exploited SharePoint flaws for initial access as early as July 7, 2025. “As of this writing, Microsoft has observed two named Chinese nation-state actors, Linen Typhoon […]