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Ebury and Mayhem server malware families still active

Ebury and Mayhem, two families of Linux server malware, about which VB published papers back in 2014, are still active and have received recent updates.
Whether it is to send spam or to redirect web traffic to malicious payloads, compromised (Linux) web servers are the glue in many a malware campaign. Two such networks of… https://www.virusbulletin.com/blog/2017/10/ebury-and-mayhem-server-malware-families-still-active/

Paper: Mayhem - a hidden threat for *nix web servers

New kind of malware has the functions of a traditional Windows bot, but can act under restricted privileges in the system.
New kind of malware has the functions of a traditional Windows bot, but can act under restricted privileges in the system. One of the main trends in malware in recent years is a… https://www.virusbulletin.com/blog/2014/07/paper-mayhem-hidden-threat-nix-web-servers/

Apache binaries replaced by stealth malcious ones

Malicious servers opening backdoors, performing redirects.
Malicious servers opening backdoors, performing redirects. Researchers at ESET and Sucuri have discovered a modified Apache binary that is used on hundreds of web servers to… https://www.virusbulletin.com/blog/2013/04/apache-binaries-replaced-stealth-malcious-ones/

Thousands of websites infected with .htaccess redirect attack

Various anti-detection methods applied.
Various anti-detection methods applied. Thousands of legitimate websites have seen .htaccess files compromised and as a consequence have been used to serve the 'Milisenco' trojan,… https://www.virusbulletin.com/blog/2012/07/thousands-websites-infected-htaccess-redirect-attack/