We often see messages from malware authors in the malware that we analyze. And, strangely, unlike the theme of The Police’s hit song “Message in a Bottle,” these are never expressions of love. On the contrary, they’re usually offensive.

Backdoor-DOQ is a backdoor Trojan. A variant that we analyzed last week would, among other things, establish a connection to a remote server via IRC and wait for commands from an attacker on the communication channel. Beyond its nastiness, the Backdoor-DOQ executable contains a message in plain text. I’ve censored the nonfamily friendly pieces of this: “I do voodoo on your mom [expletive]. BTW metal rules pop sucks.”

It’s hardly a love song.

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