Doctor Web’s security researchers have examined a Trojan named Linux.Mirai which is used by criminals to carry out DDoS attacks. Because virus specialists were familiar with earlier versions of this Trojan, they were able to find many features of the previous versions in this latest one, and even the characteristic hallmarks of members of other Trojan families.

Doctor Web analysts have detected, within the Android.Xiny family, new species of Trojans designed to download and delete various programs. These Trojans can now infect the processes of system applications and download malicious plug-ins into the programs they have attacked.

Distributed Denial of Service (DDoS) attacks are the most common way for cybercriminals to attack network resources. A server under attack receives so many in-coming requests that it cannot cope with the influx and shuts down. Cybercriminals often use special malware for such attacks. One of these programs, dubbed Linux.DDoS.93, was discovered by Doctor Web’s security researchers.