Detailed analysis of a targeted campaign that tries to steal sensitive information from different organizations throughout the world, but particularly in Pakistan.
Some 400 web servers found infected with Linux/Cdorked.A. including 50 in Alexa’s top 100,000 websites. And this backdoor has been applied to Lighttpd and nginx binaries in addition to Apache.
We clarify that the Linux/Cdorked backdoor malware leaves no traces on the hard drive “other than its modified httpd binary” which can be scanned for detection in several ways.
The mysterious Avatar rootkit, detected by ESET as Win32/Rootkit.Avatar, appears to reflect a heavy investment in code development, with an API and a SDK available, plus an interesting abuse of Yahoo Groups for C&C communications.
Analysis of a malicious backdoor serving Blackhole exploit pack found on Linux Apache webserver compromised by malware dubbed Linux/Cdorked.A, together with remediation tool and techniques.
Technical analysis of Power Loader, a special bot builder for making downloaders for other malware families and yet another example of specialization and modularity in malware production.