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Risk Level 1: Very Low

December 10, 2003
December 11, 2003 3:25:55 PM
Also Known As:
Downloader-DP [McAfee], Perlovga [McAfee], Backdoor.Trojan.Client [Symantec], Backdoor.Formador.c [Kaspersky]
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
Backdoor.Formador is a back door server that allows unauthorized remote access to a compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version pending
  • Latest Rapid Release version April 27, 2015 revision 034
  • Initial Daily Certified version pending
  • Latest Daily Certified version April 27, 2015 revision 039
  • Initial Weekly Certified release date December 10, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.

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