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

This trojan is downloaded by one of the W32/Bagle variants.  It modifies security settings on the victims computer.

Symptoms

When executed it copies itself to the %Windir% folder as:

• firewall_anti.exe

It further drops a DLL component under the name firewall_anti.dll into the %Windir% folder.  This DLL is injected into the same memory space as Explorer.exe.

The following registry keys is created so that it runs each time after a reboot:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
  Run "firewall_anti" = %Windir%\firewall_anti.exe

The following registry key is created so that it runs as a service:

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

Detection is included in our BETA DAT files and will also be included in the next scheduled DAT release. In addition to the DAT version requirements for detection, the specified engine version (or greater) must also be used.

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 -

This trojan is downloaded by one of the W32/Bagle variants.  It modifies security settings on the victims computer.

Symptoms

Symptoms -

When executed it copies itself to the %Windir% folder as:

• firewall_anti.exe

It further drops a DLL component under the name firewall_anti.dll into the %Windir% folder.  This DLL is injected into the same memory space as Explorer.exe.

The following registry keys is created so that it runs each time after a reboot:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
  Run "firewall_anti" = %Windir%\firewall_anti.exe

The following registry key is created so that it runs as a service:

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, etc. .

Removal -

Removal -

Detection is included in our BETA DAT files and will also be included in the next scheduled DAT release. In addition to the DAT version requirements for detection, the specified engine version (or greater) must also be used.

Additional Windows ME/XP removal considerations

Variants

Variants -

N/A