Content

JS/Downloader-AH

Type
Trojan
SubType
Downloader
Discovery Date
06/23/2009
Length
varies
Minimum DAT
5656 (06/24/2009)
Updated DAT
5759 (10/02/2009)
Minimum Engine
5.2.00
Description Added
06/23/2009
Description Modified
06/23/2009 4:21 PM (PT)
Risk Assessment
Corporate User
N/A
Home User
N/A

Tab Navigation

Characteristics

Downloaders are designed to pull files from a remote Website and execute the files that have been downloaded.

The JavaScript detected as JS/Downloader-AH is obfuscated and is responsible for downloading W32/Pinkslipbot

When run, the script downloads q1.dll & q2l.exe which are detected as W32/Pinkslipbot  from
a.tn[removed].cn

Symptoms

  • Network Traffic to and from the above mentioned domain
  • Detection of W32/Pinkslipbot

Method of Infection

This trojan can get installed while browsing Websites where it has been hosted.

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 -

Downloaders are designed to pull files from a remote Website and execute the files that have been downloaded.

The JavaScript detected as JS/Downloader-AH is obfuscated and is responsible for downloading W32/Pinkslipbot

When run, the script downloads q1.dll & q2l.exe which are detected as W32/Pinkslipbot  from
a.tn[removed].cn

Symptoms

Symptoms -

  • Network Traffic to and from the above mentioned domain
  • Detection of W32/Pinkslipbot

Method of Infection

Method of Infection -

This trojan can get installed while browsing Websites where it has been hosted.

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