Cidra.D was discovered on 10th of March 2004. It's a trojan proxy, allowing to use users' computers to relay information, i.e. unsolicited email.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Installation to system
The trojan will add an entry to the Windows registry aiming at being run every time Windows starts. The key will be:
Which will point where the file is initially run from.
Cidra.D does not spread by itself. It was massively spammed.
It will relay connections though infected computers, giving its creator a massively distributed distribution channel for spam and other content.
Detection for this malware was published on March 10th, 2004 in the following F-Secure
Detection Type: PC
Technical Details: Ero Carrera, March 10th, 2004