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

Registers an Inprocserver to execute the DLL after reboot

Registers a Browser Helper Object (BHO) to perform malicious actions

Upon execution the Trojan creates the following files:

1. %WinDir%\system32\bhdvgtueyitf.dll [Detected as Downloader-BNY]
2. %WinDir%\system32\sys.dat [Detected as Downloader-BNY]

The Following registry elements have been added:

• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\InProcServer32
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9F1A6EFDB2D12}\InProcServer32\: "%SystemRoot%\system32\bhdvgtueyitf.dll"
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9- F1A6EFDB2D12} \InProcServer32\ThreadingModel: "Apartment"
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\: "Microsoft Online Helper!"
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\: "Microsoft Online Helper!"
• HKEY_USERS\S-1-5-21-1454471165-926492609-839522115-500\Software\Microsoft\Internet Explorer\Main\^%\E$@@#n%^a&^()%b#(^$%l%(^%$e(^&^%\#$%r$$^%o$#(%w@$%#$s%^^%$e%^(()(*& %#E*&^&x$(%%t%$#$@e^^%@(n#$%s))#%i*^o$%$^$^n(&*s(%^&: "yes"

[Where %WinDir% is the Windows Directory - for example c:\windows]

Symptoms

Existence of above mentioned files and Registry keys

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 spam, 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.

Characteristics

Characteristics -

Registers an Inprocserver to execute the DLL after reboot

Registers a Browser Helper Object (BHO) to perform malicious actions

Upon execution the Trojan creates the following files:

1. %WinDir%\system32\bhdvgtueyitf.dll [Detected as Downloader-BNY]
2. %WinDir%\system32\sys.dat [Detected as Downloader-BNY]

The Following registry elements have been added:

• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\InProcServer32
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9F1A6EFDB2D12}\InProcServer32\: "%SystemRoot%\system32\bhdvgtueyitf.dll"
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9- F1A6EFDB2D12} \InProcServer32\ThreadingModel: "Apartment"
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\: "Microsoft Online Helper!"
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92016F88-97B2-4C4A-91C9-F1A6EFDB2D12}\: "Microsoft Online Helper!"
• HKEY_USERS\S-1-5-21-1454471165-926492609-839522115-500\Software\Microsoft\Internet Explorer\Main\^%\E$@@#n%^a&^()%b#(^$%l%(^%$e(^&^%\#$%r$$^%o$#(%w@$%#$s%^^%$e%^(()(*& %#E*&^&x$(%%t%$#$@e^^%@(n#$%s))#%i*^o$%$^$^n(&*s(%^&: "yes"

[Where %WinDir% is the Windows Directory - for example c:\windows]

Symptoms

Symptoms -

Existence of above mentioned files and Registry keys

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 spam, 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