Following the investigation into UAC-0212’s increasing activity against multiple organizations in Ukraine’s critical infrastructure sector, CERT-UA notifies the global cyber defender community of the reemergence of another hacking group in the Ukrainian cyber threat arena. The organized criminal group tracked as UAC-0173 has been conducting a series of phishing attacks against notaries impersonating the sender […]
In Q1 2024, defenders uncovered destructive cyberattacks against the information and communication technology systems (ICT) of approximately 20 organizations in the critical infrastructure sector across 10 regions of Ukraine. CERT-UA has been observing this activity tracked as a separate threat cluster, UAC-0133, which, with a high level of confidence, is linked to a nefarious russia-afiliated […]
Adversaries frequently leverage legitimate tools in their malicious campaigns. The popular AnyDesk remote utility has also been largely exploited by hackers for offensive purposes. Cyber defenders have unveiled the recent misuse of AnyDesk software to connect to targeted computers, masquerading the malicious efforts as CERT-UA activity. Detect Cyber-Attacks Exploiting AnyDesk Based on CERT-UA Research Adversaries […]
Hard on the heels of the cyber-espionage campaign by UAC-0099 via the phishing attack vector, another hacking collective has evolved in the cyber threat arena to target Ukrainian organizations. CERT-UA notifies defenders about the discovery of fake websites that mimic the official page of the “Army+” application and are hosted using the Cloudflare Workers service. […]
The UAC-0099 hacking collective, which has been launching targeted cyber-espionage attacks against Ukraine since the second half of 2022, resurfaces in the cyber threat arena. The CERT-UA team has observed a spike in the group’s malicious activity throughout November-December 2024 against Ukrainian government entities using the phishing attack vector and spreading LONEPAGE malware. Detect UAC-0099 […]
Since russia launched its full-scale invasion of Ukraine, defense organizations have been heavily targeted by multiple hacking groups via the phishing attack vector. CERT-UA researchers recently shed light on the latest attacks by UAC-0185 (aka UNC4221) targeting Ukrainian organizations within the defense-industrial sector. The new CERT-UA alert covers cyber attacks using email spoofing and masquerading […]
The notorious Russian state-sponsored hacking group known as APT28 or UAC-0001, which has a history of launching targeted phishing attacks on Ukrainian public sector organizations, has resurfaced in the cyber threat landscape. In the latest adversary campaign covered by CERT-UA, attackers weaponize a PowerShell command embedded in the clipboard as an entry point to further conduct offensive […]
Hot on the heels of the “Rogue RDP” attacks exploiting the phishing attack vector and targeting Ukrainian state bodies and military units, CERT-UA researchers uncovered another wave of phishing attacks leveraging emails with invoice-related subject lures and weaponizing HOMESTEEL malware for file theft. The UAC-0218 group is believed to be behind the ongoing adversary operation. […]
Hard on the heels of a new wave of cyber-attacks by UAC-0050 involving cyber espionage and financial thefts and relying on a diverse number of tools, including MEDUZASTEALER, another suspicious activity comes to the spotlight in the Ukrainian cyber threat arena. CERT-UA recently launched a new alert covering spoofed phishing attacks spreading MEDUZASTEALER via Telegram […]
The UAC-0050 hacking collective notorious for its long-standing offensive operations against Ukraine steps back into the cyber threat arena. CERT-UA researchers have long been investigating the group’s activity, which primarily focuses on three key directions, including cyber espionage and financial theft, along with information and psychological operations tracked under the “Fire Cells Group” brand. Financially […]