TROJ_QADARS.BZ

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.

It does not have any propagation routine.

It does not have any backdoor routine.

It connects to certain websites to send and receive information.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be manually installed by a user.

Installation

This Trojan adds the following mutexes to ensure that only one of its copies runs at any one time:

• {Generated Hash of the file}

It injects codes into the following process(es):

• svchost.exe

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Other Details

This Trojan connects to the following website to send and receive information:

• hxxp://{Random Domain}.{com|net|org}/report.php
  It uses domain generation algorithm (DGA) for its C&C servers.

It does the following:

• It checks the following registry and terminates itself if found:
  • HKEY_LOCAL_MACHINE\Software\KasperskyLab
  • HKEY_LOCAL_MACHINE\Software\AVG
• Sends the following information to its CnC:
  • Bot ID
  • OS Version
  • Bot Version
• It gathers installed applications by enumerating DisplayName entries in the following registry entry:
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
• It may download additional modules from its server. However as of this writing, there was no successful connection to the server.
• It executes the following commands:
  %System%\netsh.exe advfirewall firewall add rule name="svchost.exe" dir=in action=allow program="%System%\svchost.exe" enable=yes

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

NOTES:

Upon execution it displays the following user interface to trick the user that it is a legitimate application.

It does not have rootkit capabilities.

It does not exploit any vulnerability.