McAfee > Theat Center > Virus Detail Page

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.

Aliases

• TROJ_TETAS.A : Trend

• Trojan Horse : Symantec

Characteristics

Upon execution of "systemtray.exe" it displays pornographic images repeatedly. It has 3 bitmap images in its resource section which will be shown randomly one after the other filling the desktop screen completely.

It was also observed that it copies itself to %sysdir% folder
where %sysdir% is windows system32 folder for example c:\windows\system32

Registry :

It adds the following registry key for loading at startup.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Run "SystemTray" = "SystemTray.exe"

Symptoms

Presence of above mentioned files and registry entries.

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, email, etc.

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.

Aliases

• TROJ_TETAS.A : Trend

• Trojan Horse : Symantec

Characteristics

Characteristics -

Upon execution of "systemtray.exe" it displays pornographic images repeatedly. It has 3 bitmap images in its resource section which will be shown randomly one after the other filling the desktop screen completely.

It was also observed that it copies itself to %sysdir% folder
where %sysdir% is windows system32 folder for example c:\windows\system32

Registry :

It adds the following registry key for loading at startup.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Run "SystemTray" = "SystemTray.exe"

Symptoms

Symptoms -

Presence of above mentioned files and registry entries.

Method of Infection

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, email, etc.

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