Aspam

The Aspam trojan allows the remote attacker to gain control over a compromised computer. The spyware arrives in executable file attached to a spoofed e-mail message, which is disguised as a letter from Microsoft Corporation. The letter contains information about spam and describes the attached file as a useful anti-spam tool. Once the user executes a file, the trojan silently installs itself to the computer. It automatically runs on every Windows startup.