1. Symantec/
  2. Security Response/
  3. Lifeform.2054

Lifeform.2054

Discovered:
February 11, 2003
Updated:
February 13, 2007 11:57:36 AM
Type:
Virus

Lifeform.2054 is a memory-resident DOS virus that infects .com files.

The virus is encrypted using a simple polymorphic one-byte xor encryption. This means that the key will change between infections. The decryption routine for this virus contains several simple antidebugging tricks.

NOTE: Definitions that have dates earlier than February 11, 2003, detect this virus as BloodHound.ResCOM.

Antivirus Protection Dates

  • Initial Rapid Release version February 11, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version February 11, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date February 12, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Neal Hindocha
Summary| Removal

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2016 Internet Security Threat Report, Volume 21
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