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.
|
Minimum DAT
4349 (2004-04-07) Updated DAT5175 (2007-11-30) |
Minimum Engine
5.1.00 File Length61,440 Bytes |
Description Added
2004-04-21 Description Modified2004-06-17 |
Malware Proliferation
Characteristics
When the trojan is executed, it will download the following files:
- c:\Program Files\ISTsvc\istsvc.exe
- c:\Program Files\PurityScan\PuritySCAN.exe
- c:\WINDOWS\Application Data\besu.exe
- c:\WINDOWS\SYSTEM\expext.dll
The above files are various Adware programs detected as
Adware-Istbar
,
Adware-PurityScan
,
Adware-BuddyLinks
and
Adware-BHO.gen
.
Symptoms
Method of Infection
Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, etc.
Removal
All Users:
Use current engine and DAT files for detection. Delete any file which contains this detection.
Variants