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.

Characteristics

When executed, this Windows based trojan changes the configuration of Internet Explorer by altering several Registry keys.

Symptoms

This trojan installs itself as WINLOGON.EXE in the %SYSTEMROOT% folder (typically c:\windows or c:\winnt). For example:

• C:\WINDOWS\WINLOGON.EXE

Note:  This is not to be confused with the legitimate WINLOGON.EXE file in %SYSTEMROOT%\SYSTEM32.

Startup is hooked via the following Registry key:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ Windows\
  CurrentVersion\Run "iexplore.exe" = c:\windows\winlogon.exe

Once infected, the Internet Explorer home page is changed to:

• h t t p://www.fastlook.net/

Internet Explorer settings are altered via modifications to the following keys:

• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main "Search Bar" = http://www.fastlook.net/sb.php
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main "Flsrch" = 6f (hexadecimal)
  
  
  

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

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 -

When executed, this Windows based trojan changes the configuration of Internet Explorer by altering several Registry keys.

Symptoms

Symptoms -

This trojan installs itself as WINLOGON.EXE in the %SYSTEMROOT% folder (typically c:\windows or c:\winnt). For example:

• C:\WINDOWS\WINLOGON.EXE

Note:  This is not to be confused with the legitimate WINLOGON.EXE file in %SYSTEMROOT%\SYSTEM32.

Startup is hooked via the following Registry key:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ Windows\
  CurrentVersion\Run "iexplore.exe" = c:\windows\winlogon.exe

Once infected, the Internet Explorer home page is changed to:

• h t t p://www.fastlook.net/

Internet Explorer settings are altered via modifications to the following keys:

• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main "Search Bar" = http://www.fastlook.net/sb.php
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main "Flsrch" = 6f (hexadecimal)
  
  
  

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 -

Variants

Variants -

N/A