A malware with the code name “Mayhem” has recently been found infecting Linux and FreeBSD servers throughout the world.
Malware dubbed Mayhem is spreading through Linux and FreeBSD web servers, researchers say. The software nasty uses a grab bag of plugins to cause mischief, and infects systems that are not up to date with security patches.
Andrej Kovalev, Konstantin Ostrashkevich and Evgeny Sidorov, who work at Russian internet portal Yandex, discovered the malware targeting *nix servers. They traced transmissions from compromised computers to two command and control (C&C) servers. So far they have found 1,400 machines that have fallen to the code, with potentially thousands more to come.
“In the *nix world, autoupdate technologies aren’t widely used, especially in comparison with desktops and smartphones. The vast majority of web masters and system administrators have to update their software manually and test that their infrastructure works correctly,” the trio wrote in a technical report for Virus Bulletin.
“For ordinary websites, serious maintenance is quite expensive and often webmasters don’t have an opportunity to do it. This means it is easy for hackers to find vulnerable web servers and to use such servers in their botnets.”