"ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers"
"ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers"
The threat actors behind ShellBot, also known as PerlBot, are using IP addresses transformed into its hexadecimal notation in order to compromise inadequately managed Linux SSH servers and launch the Distributed Denial-of-Service (DDoS) malware. According to the AhnLab Security Emergency Response Center (ASEC), the download URL used by the threat actor to install ShellBot has changed from a standard IP address to a hexadecimal value.