Virus Encyclopedia

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Autorun.LG

Threat LevelLow threat
DamageHigh
DistributionNot widespread

At a glance

Common name:Autorun.LG
Technical name:W32/Autorun.LG.worm
Threat level:Medium
Type:Worm
Effects: It spreads and affects other computers. It uses stealth techniques to avoid being detected by the user. It does not spread automatically using its own means.
Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95/3.X

First detected on:Jan. 8, 2008
Detection updated on:Jan. 8, 2008
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description

Autorun.LG is a worm that spreads by copying itself, without infecting other files.

It uses stealth techniques to avoid being detected by the user:

  • It deletes the original file from which it was run once it is installed on the computer.

Autorun.LG uses the following propagation or distribution methods:

  • Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
  • File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.

Tech details

Effects

The main objective of Autorun.LG is to spread and affect other computers.

It avoids being detected by the user by using the following techniques:
  • It deletes the original file from which it was run once it is installed on the computer.

Means of transmission


Autorun.LG does not spread automatically using its own means. It needs the attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

Further Details

Autorun.LG has the following additional characteristics:

  • It is 105325 bytes in size.

Solution

See solution