Content

DNSChanger.ad

Type
Trojan
SubType
Win32
Discovery Date
06/11/2009
Length
Varies
Minimum DAT
5643 (06/11/2009)
Updated DAT
5761 (10/04/2009)
Minimum Engine
5.2.00
Description Added
06/11/2009
Description Modified
06/11/2009 4:25 PM (PT)
Risk Assessment
Corporate User
Low
Home User
Low

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Characteristics

== Update 11 June 2009 ==

This Trojan is dropped by W32/Generic.worm.i. When run, it places a copy of itself into %WINDIR%\Temp (where %WINDIR% is usually C:\Windows) with a random filename with a .tmp extension.

Symptoms

  • Presence suspicious files in the %WINDIR%\Temp folder

Method of Infection

User interaction is required to execute this Trojan. Otherwise this Trojan could be run by W32/Generic.worm.i.

Removal

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

Additional Windows ME/XP removal considerations

Variants

Variants

    N/A

All Information

Overview -

This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Characteristics

Characteristics -

== Update 11 June 2009 ==

This Trojan is dropped by W32/Generic.worm.i. When run, it places a copy of itself into %WINDIR%\Temp (where %WINDIR% is usually C:\Windows) with a random filename with a .tmp extension.

Symptoms

Symptoms -

  • Presence suspicious files in the %WINDIR%\Temp folder

Method of Infection

Method of Infection -

User interaction is required to execute this Trojan. Otherwise this Trojan could be run by W32/Generic.worm.i.

Removal -

Removal -

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

Additional Windows ME/XP removal considerations

Variants

Variants -

    N/A