Content

Generic FakeAlert!9F6E4576

Type
Trojan
SubType
Downloader
Discovery Date
10/20/2009
Length
44,544 bytes
Minimum DAT
5778 (10/21/2009)
Updated DAT
5887 (02/09/2010)
Minimum Engine
5.3.01
Description Added
10/20/2009
Description Modified
10/20/2009 11:01 PM (PT)
Risk Assessment
Corporate User
Low-Profiled
Home User
Low-Profiled

Tab Navigation

Characteristics

-- Update October 21, 2009 --
The risk assessment of this threat has been updated to Low-Profiled due to media attention at: http://www.darkreading.com/security/vulnerabilities/showArticle.jhtml?articleID=220700200

--

This detection is for a FakeAlert trojan, that was spammed as a free tool to scan for the "Conficker.B" worm.

Upon execution, this malware copies itself to the following locations and launches them.

  • %userprofile%\Application Data\seres.exe
  • %userprofile%\Application Data\svcst.exe

It then downloads a malicious file to the following location

  • %userprofile%\Application Data\lizkavd.exe (detected as FakeAlert-XPSecCenter)

it then pops up a fake message, stating the the system is infected (as shown below)


Upon clicking the message baloon, the "lizkavd.exe" is run, which downloads and installs a fake antivirus program.


The following registry entries are created/modified


HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "RunInvalidSignatures"
 Data: 01, 00, 00, 00

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations "LowRiskFileTypes"
 Data: zip;.rar;.cab;.txt;.exe;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mov;.mp3;.wav

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "mserv"
 Data: %userprofile%\Application Data\seres.exe

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "svchost"
 Data: %userprofile%\Application Data\svcst.exe

Symptoms

  • Presence of the files and registry entries mentioned.
  • Increase in bandwidth usage due to additional files being downloaded.

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.

This malware was spammed as a free tool to scan for the "Conficker.B" worm.

Removal

AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.

Additional Windows ME/XP removal considerations

Variants

Variants

    N/A

All Information

Overview -

This detection is for a FakeAlert trojan, that was spammed as a free tool to scan for the "Conficker.B" worm.

Aliases

  • Packed.Win32.Krap.ah (Kaspersky)
  • Trojan.FakeAV (Symantec)
  • W32/FakeAlert.SYY!tr.dldr (Fortinet)

Characteristics

Characteristics -

-- Update October 21, 2009 --
The risk assessment of this threat has been updated to Low-Profiled due to media attention at: http://www.darkreading.com/security/vulnerabilities/showArticle.jhtml?articleID=220700200

--

This detection is for a FakeAlert trojan, that was spammed as a free tool to scan for the "Conficker.B" worm.

Upon execution, this malware copies itself to the following locations and launches them.

  • %userprofile%\Application Data\seres.exe
  • %userprofile%\Application Data\svcst.exe

It then downloads a malicious file to the following location

  • %userprofile%\Application Data\lizkavd.exe (detected as FakeAlert-XPSecCenter)

it then pops up a fake message, stating the the system is infected (as shown below)


Upon clicking the message baloon, the "lizkavd.exe" is run, which downloads and installs a fake antivirus program.


The following registry entries are created/modified


HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "RunInvalidSignatures"
 Data: 01, 00, 00, 00

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations "LowRiskFileTypes"
 Data: zip;.rar;.cab;.txt;.exe;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mov;.mp3;.wav

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "mserv"
 Data: %userprofile%\Application Data\seres.exe

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "svchost"
 Data: %userprofile%\Application Data\svcst.exe

Symptoms

Symptoms -

  • Presence of the files and registry entries mentioned.
  • Increase in bandwidth usage due to additional files being downloaded.

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.

This malware was spammed as a free tool to scan for the "Conficker.B" worm.

Removal -

Removal -

AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.

Additional Windows ME/XP removal considerations

Variants

Variants -

    N/A