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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.


Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Lentin.L
Technical name:W32/Lentin.L
Threat level:Low
Effects:  It terminates processes belonging to antivirus programs and firewalls, among others.
Affected platforms:

Windows XP/2000/NT/ME/98/95

First detected on:Dec. 29, 2002
Detection updated on:March 16, 2005
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 


Lentin.L is a worm  that reaches computers in a file attached to an e-mail message with variable characteristics.

The effects of Lentin.L are considered dangerous because:

  • It spreads rapidly via e-mail.
  • It terminates several processes in affected computers, which causes, among others, antivirus programs and firewalls to stop.

Visible Symptoms 


There is no clear indication that Lentin.L has reached your computer.

It is also difficult to identify the messages carrying Lentin.L, as their characteristics vary each time. The name of the attached file that carries out the infection is selected at random from a list and has an  SRC EXE or  COM extension.

For a list of the possible names of the attached file carrying Lentin.L, click here.