Ghostwriter Targets Ukraine Government Entities with Prometheus Phishing Malware

The Belarus-aligned threat actor known as Ghostwriter aka UAC-0057 and UNC1151 has been observed using lures related to Prometheus, a Ukrainian online learning platform, to target government organizations in the country. The activity, per the Computer Emergency Response Team of Ukraine CERT-UA,...

Ghostwriter Targets Ukrainian Government With Geofenced PDF Phishing, Cobalt Strike

The Belarus-aligned threat group known as Ghostwriter has been attributed to a fresh set of attacks targeting governmental organizations in Ukraine. Active since at least 2016, Ghostwriter has been linked to both cyber espionage and influence operations targeting neighboring countries, particular...

UAC-0247 Targets Ukrainian Clinics and Government in Data-Theft Malware Campaign

The Computer Emergencies Response Team of Ukraine CERT-UA has disclosed details of a new campaign that has targeted governments and municipal healthcare institutions, mainly clinics and emergency hospitals, to deliver malware capable of stealing sensitive data from Chromium-based web browsers and...

CERT-UA Impersonation Campaign Spread AGEWHEEZE Malware to 1 Million Emails

The Computer Emergency Response Team of Ukraine CERT-UA has disclosed details of a new phishing campaign in which the cybersecurity agency itself was impersonated to distribute a remote administration tool known as AGEWHEEZE. As part of the attacks, the threat actors, tracked as UAC-0255 , sent...

Bearlyfy Hits Russian Firms with Custom GenieLocker Ransomware

A pro-Ukrainian group called Bearlyfy has been attributed to more than 70 cyber attacks targeting Russian companies since it first surfaced in the threat landscape in January 2025, with recent attacks leveraging a custom Windows ransomware strain codenamed GenieLocker. "Bearlyfy also known as...

Pawn Storm Campaign Deploys PRISMEX, Targets Government and Critical Infrastructure Entities

This blog discusses the steganography, cloud abuse, and email-based backdoors used against the Ukrainian defense supply chain in the latest Pawn Storm campaign that TrendAI™ Research observed and analyzed...

APT28 Uses BEARDSHELL and COVENANT Malware to Spy on Ukrainian Military

The Russian state-sponsored hacking group tracked as APT28 has been observed using a pair of implants dubbed BEARDSHELL and COVENANT to facilitate long‑term surveillance of Ukrainian military personnel. The two malware families have been put to use since April 2024, ESET said in a new report shar...

APT28-Linked Campaign Deploys BadPaw Loader and MeowMeow Backdoor in Ukraine

Cybersecurity researchers have disclosed details of a new Russian cyber campaign that has targeted Ukrainian entities with two previously undocumented malware families named BadPaw and MeowMeow. "The attack chain initiates with a phishing email containing a link to a ZIP archive. Once extracted, ...

Google Ties Suspected Russian Actor to CANFAIL Malware Attacks on Ukrainian Orgs

A previously undocumented threat actor has been attributed to attacks targeting Ukrainian organizations with malware known as CANFAIL. Google Threat Intelligence Group GTIG described the hacking group as possibly affiliated with Russian intelligence services. The threat actor is assessed to have...

Black Basta Ransomware Leader Added to EU Most Wanted and INTERPOL Red Notice

Ukrainian and German law enforcement authorities have identified two Ukrainians suspected of working for the Russia-linked ransomware-as-a-service RaaS group Black Basta. In addition, the group's alleged leader, a 35-year-old Russian national named Oleg Evgenievich Nefedov Нефедов Олег Евгеньевич...

PLUGGYAPE Malware Uses Signal and WhatsApp to Target Ukrainian Defense Forces

The Computer Emergency Response Team of Ukraine CERT-UA has disclosed details of new cyber attacks targeting its defense forces with malware known as PLUGGYAPE between October and December 2025. The activity has been attributed with medium confidence to a Russian hacking group tracked as Void...

Ukrainian National Pleads Guilty in Nefilim Ransomware Conspiracy

Ukrainian man pleads guilty in United States to deploying Nefilim ransomware in global extortion scheme targeting companies across multiple countries...

APT28 Targets Ukrainian UKR-net Users in Long-Running Credential Phishing Campaign

The Russian state-sponsored threat actor known as APT28 has been attributed to what has been described as a "sustained" credential-harvesting campaign targeting users of UKR.net, a webmail and news service popular in Ukraine. The activity, observed by Recorded Future's Insikt Group between June...

Ukrainian Woman in US Custody for Aiding Russian NoName057 Hacker Group

Ukrainian national Victoria Dubranova is in U.S. custody, accused of supporting Russian hacker group NoName057 in cyberattacks on critical infrastructure. She has pleaded not guilty...

Trojanized ESET Installers Drop Kalambur Backdoor in Phishing Attacks on Ukraine

A previously unknown threat activity cluster has been observed impersonating Slovak cybersecurity company ESET as part of phishing attacks targeting Ukrainian entities. The campaign, detected in May 2025, is tracked by the security outfit under the moniker InedibleOchotense , describing it as...

Ukrainian Conti Ransomware Suspect Extradited to US from Ireland

Ukrainian man accused of helping run Conti ransomware extradited from Ireland to the U.S. to face charges over global cyberattacks and $150M in ransom payments...

Russian Hackers Target Ukrainian Organizations Using Stealthy Living-Off-the-Land Tactics

Organizations in Ukraine have been targeted by threat actors of Russian origin with an aim to siphon sensitive data and maintain persistent access to compromised networks. The activity, according to a new report from the Symantec and Carbon Black Threat Hunter Team, targeted a large business...

PhantomCaptcha RAT Attack Targets Aid Groups Supporting Ukraine

SentinelLABS’ research reveals PhantomCaptcha, a highly coordinated, one-day cyber operation on Oct 8, 2025, targeting the International Red Cross, UNICEF, and Ukraine government groups using fake emails and a Remote Access Trojan RAT linked to Russian infrastructure...

Everyone Needs AIR: An Agnostic Incident Reporting Framework for Cybersecurity in Operational Technology

Operational technology OT networks are increasingly coupled with information technology IT, expanding the attack surface and complicating incident response. Although OT standards emphasise incident reporting and evidence preservation, they do not specify what data to capture during an incident,...

EUVD-2005-3380

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