Latest cybersecurity reporting from selected sources.

Cybersecurity researchers have disclosed details of a new Linux backdoor named PamDOORa that's being advertised on the Rehub Russian cybercrime forum for $1,600 by a threat actor called "darkworm." The backdoor is designed as a Pluggable Authentication Module (PAM)-based post-exploitation toolkit that enables persistent SSH access by means of a magic password and specific TCP port combination.

Cybersecurity researchers have discovered a remote access toolkit of Russian-origin that's distributed via malicious Windows shortcut (LNK) files that are disguised as private key folders

Russian state-sponsored threat actors have been linked to a fresh set of credential harvesting attacks targeting individuals associated with a Turkish energy and nuclear research agency, as well as staff affiliated with a European think tank and organizations in North Macedonia and Uzbekistan

Widely Used ukr.net Is a Repeat Focus for APT28 Cyberespionage OperationsDon't expect cyber spies to respect distinctions between military and civilian networks, especially in times of war, warn researchers tracking persistent Russian military intelligence credential-harvesting attacks against users of Ukraine's popular, commercial UKR.NET webmail platform.

Cybersecurity researchers have disclosed a surge in "mass scanning, credential brute-forcing, and exploitation attempts" originating from IP addresses associated with a Russian bulletproof hosting service provider named Proton66

In a "new class of attack," the Russian APT breached a target in Washington, DC, by credential-stuffing wireless networks in close proximity to it and daisy-chaining a vector together in a resourceful and creative way, according to researchers.

Cybersecurity researchers have unearthed a new influence operation targeting Ukraine that leverages spam emails to propagate war-related disinformation

'Coldriver' Has Been Sending Backdoors Embedded in PDFs Since November 2022A Russian domestic intelligence agency hacking group known for long-lasting logon credential phishing campaigns against Western targets is now deploying malware embedded into PDFs, say security researchers from Google. "Coldriver" is using a family of backdoors Google dubs Spica.