Content

BackDoor-DOM

Type
Trojan
SubType
Remote Access
Discovery Date
04/18/2008
Length
Minimum DAT
5277 (04/18/2008)
Updated DAT
5918 (03/12/2010)
Minimum Engine
5.2.00
Description Added
04/18/2008
Description Modified
10/07/2008 2:10 AM (PT)
Risk Assessment
Corporate User
Low
Home User
Low

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Characteristics

This detection is for a Backdoor remote access Trojan.

The Trojan is dropped by Backdoor-DOM.DR, a specially crafted PDF document that contains the Backdoor-DOM trojan embedded within.

UPCOMING_CONFERENCE_LIST.PDF (Backdoor-DOM.DR), When opened the PDF file causes vulnerable versions of the Adobe Acrobat Reader program to crash passing control to the trojan.  

The trojan hooks the system by adding itself to:

HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON

The Trojan uses Microsoft sounding names like the following:

WIUPDATE.EXE

WINSRV.EXE

WINDOWS.HLP

AcroRD32.EXE

Typically dropped into the following directory c:\windows\system32

It also drops a temporary file which is then renamed to SVCHost.exe and injects itself into SERVICES.EXE. This is detected as Backdoor-DOM!MEM with an On Demand Scan if running in memory. 

This opens connection to news.fei[removed]obe.com.

 

 

Symptoms

Presence of the aforementioned files or registry entries.

Method of Infection

Spammed PDF exploit.

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 -

This detection is for a Backdoor remote access Trojan.

The Trojan is dropped by Backdoor-DOM.DR, a specially crafted PDF document that contains the Backdoor-DOM trojan embedded within.

UPCOMING_CONFERENCE_LIST.PDF (Backdoor-DOM.DR), When opened the PDF file causes vulnerable versions of the Adobe Acrobat Reader program to crash passing control to the trojan.  

The trojan hooks the system by adding itself to:

HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON

The Trojan uses Microsoft sounding names like the following:

WIUPDATE.EXE

WINSRV.EXE

WINDOWS.HLP

AcroRD32.EXE

Typically dropped into the following directory c:\windows\system32

It also drops a temporary file which is then renamed to SVCHost.exe and injects itself into SERVICES.EXE. This is detected as Backdoor-DOM!MEM with an On Demand Scan if running in memory. 

This opens connection to news.fei[removed]obe.com.

 

 

Symptoms

Symptoms -

Presence of the aforementioned files or registry entries.

Method of Infection

Method of Infection -

Spammed PDF exploit.

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