Approaching the date of one-year anniversary of the outbreak of full-fledged war in Ukraine, cyber defenders addressed the risks of potential attacks against Ukraine and its allies by russian offensive forces. On February 23, CERT-UA cybersecurity researchers revealed the malicious activity attributed to the UAC-0056 hacking group, which was observed in malicious campaigns against Ukraine […]
February 2023 can be marked as a month of ongoing adversary campaigns against Ukraine, exploiting the phishing attack vector and leveraging remote access software. Close on the heels of phishing attacks spreading Remcos RAT and abusing Remote Utilities software, another mass email distribution targeting Ukrainian organizations garners attention from cyber defenders. The latest CERT-UA#6011 alert […]
Threat actors are constantly enriching their offensive toolkits while experimenting with new sophisticated malware variants to expand the scope of attacks. Cyber defenders have observed a new Mirai botnet variant called V3G4 come into the spotlight in the cyber threat landscape. The novel malware variant has been leveraged in multiple adversary campaigns threatening targeted users […]
Stay alert! Threat actors once again set eyes on Microsoft Windows Exchange servers, attempting to compromise them by exploiting infamous ProxyShell vulnerabilities. Cybersecurity researchers have observed a new evasive malicious campaign dubbed “ProxyShellMiner” that exploits two Microsoft Exchange ProxyShell flaws tracked as CVE-2021-34473 and CVE-2021-34523 to deliver cryptocurrency miners. Detect ProxyShellMiner Attacks Exploiting Microsoft Exchange […]
Remcos Trojan (Remote Control and Surveillance) is frequently delivered by threat actors leveraging phishing attack vectors. The malware currently reemerges in the cyber threat arena to target Ukrainian government entities. On February 6, 2023, cybersecurity researchers released a new CERT-UA#5926 alert detailing the mass email distribution impersonating the Ukrtelecom JSC aimed to spread Remcos malware […]
Since the outbreak of the global cyber war, state bodies of Ukraine and its allies have become targets of diverse malicious campaigns launched by multiple hacking collectives. Threat actors frequently leverage phishing attack vectors to perform their adversary campaigns, like in December 2022’s cyber attacks distributing DolphinCape and FateGrab/StealDeal malware. On February 1, 2023, CERT-UA […]
Microsoft documents have fallen prey to phishing attacks, and adversaries are continuously looking for new ways to disseminate malicious strains. Security vulnerabilities compromising Microsoft products frequently cause a stir in the cyber threat arena, affecting a broad number of users, like in the case Follina zero-day flaw and CVE-2022-22005. Security researchers inform the global cyber […]
The russia-linked Sandworm APT group (aka UAC-0082) has been continuously targeting Ukrainian public systems and critical infrastructure for at least a decade. This group is responsible for massive blackouts throughout the country in 2015-2016 caused by the infamous BlackEnergy malware. That was followed by the NotPetya campaign in 2017, which eventually ended up creating a […]
Security experts have shed light on a novel malicious sample hiding in the malicious arena, an evasive stealer dubbed Rhadamanthys. The malware is commonly distributed via Google ads redirecting compromised users to phishing webpages disguised as widely-used legitimate software. Detect Rhadamanthys Malware In view of the increasing popularity of Rhadamanthys stealer being broadly distributed in […]
No matter the holiday season, adversaries have no vacation inventing new malicious tricks to target unsuspecting victims. Last week, security researchers uncovered an enhanced variant of the worm-like Raspberry Robin malware dropper leveraged to target financial and insurance companies across European countries. Experts specifically note that Rasperry Robin received a significant upgrade, including complex obfuscation […]