Ukraine

Pierluigi Paganini April 08, 2026
Russia-linked APT28 uses PRISMEX to infiltrate Ukraine and allied infrastructure with advanced tactics

APT28 targets Ukraine and allies with PRISMEX malware, using stealthy techniques for espionage and command-and-control. Russia-linked group APT28 (aka UAC-0001, aka Fancy Bear, Pawn Storm, Sofacy Group, Sednit, BlueDelta, and STRONTIUM) is running a spear-phishing campaign against Ukraine and its allies, deploying a new malware suite called PRISMEX. Active since September 2025, the campaign uses advanced stealth techniques like steganography and […]

Pierluigi Paganini April 02, 2026
Threat actor UAC-0255 impersonate CERT-UA to spread AGEWHEEZE malware via phishing

Threat actors impersonated CERT-UA to send phishing emails with AGEWHEEZE malware, tricking victims into installing a fake “security tool.” A threat actor, tracked as UAC-0255, impersonated CERT-UA in a phishing campaign, sending emails to about 1 million users. The messages urged victims to download a password-protected archive from Files.fm and install a fake “specialized software,” […]

Pierluigi Paganini March 10, 2026
APT28 conducts long-term espionage on Ukrainian forces using custom malware

APT28 used BEARDSHELL and COVENANT malware to spy on Ukrainian military personnel, enabling long-term surveillance since April 2024. The Russia-linked group APT28 (aka UAC-0001, aka Fancy Bear, Pawn Storm, Sofacy Group, Sednit, BlueDelta, and STRONTIUM) has used BEARDSHELL and COVENANT malware to conduct long-term surveillance of Ukrainian military personnel. According to ESET, the campaign began in April 2024 and relies on […]

Pierluigi Paganini March 05, 2026
Russian APT targets Ukraine with BadPaw and MeowMeow malware

Researchers uncovered a Russian campaign targeting Ukrainian entities with new malware families BadPaw and MeowMeow delivered through phishing emails. Researchers reported a phishing campaign linked to Russia that targets Ukrainian organizations using two new malware families, BadPaw and MeowMeow. The attack chain begins with a phishing email carrying a link to a ZIP archive. When […]

Pierluigi Paganini February 24, 2026
Operation MacroMaze: APT28 exploits webhooks for covert data exfiltration

Russia-linked APT28 targeted European entities with a webhook-based macro malware campaign called Operation MacroMaze. Russia-linked APT28 (aka UAC-0001, aka Fancy Bear, Pawn Storm, Sofacy Group, Sednit, BlueDelta, and STRONTIUM) launched Operation MacroMaze, targeting select entities in Western and Central Europe from September 2025 to January 2026. The campaign used webhook-based macro malware, leveraging simple tools and legitimate services for infrastructure and data […]

Pierluigi Paganini February 14, 2026
Suspected Russian hackers deploy CANFAIL malware against Ukraine

A new alleged Russia-linked APT group targeted Ukrainian defense, government, and energy groups, with CANFAIL malware. Google Threat Intelligence Group identified a previously undocumented threat actor behind attacks on Ukrainian organizations using CANFAIL malware. The group is possibly linked to Russian intelligence services and has targeted defense, military, government, and energy entities at both regional […]

Pierluigi Paganini January 14, 2026
CERT-UA reports PLUGGYAPE cyberattacks on defense forces

CERT-UA reported PLUGGYAPE malware attacks on Ukraine’s defense forces, linked with medium confidence to Russia’s Void Blizzard group. The Computer Emergency Response Team of Ukraine (CERT-UA) reported new cyberattacks against Ukraine’s defense forces using PLUGGYAPE malware. Government experts attributed the attack with medium confidence to the Russian-linked group Void Blizzard (aka Laundry Bear, UAC-0190), active […]

Pierluigi Paganini January 05, 2026
Russia-linked APT UAC-0184 uses Viber to spy on Ukrainian military in 2025

Russia-linked APT UAC-0184 targets Ukrainian military and government bodies via Viber, delivering malicious ZIP files for espionage in 2025. Russia-linked threat actor UAC-0184 (aka Hive0156) is targeting Ukrainian military and government entities, using Viber messages to deliver malicious ZIP files as part of ongoing intelligence-gathering operations in 2025. “Recent monitoring data from the 360 ​​Advanced […]

Pierluigi Paganini November 07, 2025
Russia-linked APT InedibleOchotense impersonates ESET to deploy backdoor on Ukrainian systems

Russia-linked group InedibleOchotense used fake ESET installers in phishing attacks on Ukrainian targets in May 2025. Russia-linked group InedibleOchotense used trojanized ESET installers in phishing attacks against Ukrainian entities detected in May 2025. The campaign used emails and Signal messages to deliver trojanized ESET installers that installed both legitimate software and the Kalambur backdoor. “Another […]

Pierluigi Paganini October 22, 2025
PhantomCaptcha targets Ukraine relief groups with WebSocket RAT in October 2025

PhantomCaptcha phishing campaign hit Ukraine relief groups with a WebSocket RAT on Oct 8, 2025, targeting Red Cross, UNICEF, and others. SentinelOne researchers uncovered PhantomCaptcha, a coordinated spear-phishing campaign on October 8, 2025, targeting Ukraine war relief groups, including Red Cross, UNICEF, NRC, and local administrations. Threat actors used fake emails to deploy a WebSocket-based […]