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Virus Profile: RDN/Generic.bfg!a

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 1/18/2013
Date Added: 1/18/2013
Origin: Unknown
Length: 0
Type: Trojan
Subtype: Win32
DAT Required: N/A
Removal Instructions
   
 
 
   

Description

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 e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Aliases

  • Kaspersky - Trojan-PSW.Win32.Tepfer.endg
  • Ikarus - Trojan-PWS.Multi
  • Symantec - Trojan.Zbot
  • Avira - TR/Rogue.KD.832579

Indication of Infection

Presence of above mentioned activities.

Methods 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.

   

Virus Characteristics

Upon execution, it connects to the internet and downloads a file in the below location

  • %temp%\15276765.EXE

Above mentioned file comes to execution and drops a file in below location

  • %appdata%\Jyvyex\teuqf.exe[random name]
  • %appdata%\gtk-2.0\gtkfilechooser.ini

It tries to read the address book of Mail clients

  • %appdata%\Microsoft\Address Book\<Username>.wab

The Trojan steals stored passwords, cache and cookies from the following applications.

  • Opera
  • Firefox
  • Internet Explorer
  • Google Chrome
  • Windows Live Mail
  • Thunderbird
  • Bromium
  • Nichrome
  • Comodo
  • RockMelt
  • Visicom Media
  • Chromium
  • Global Downloader
  • NetSarang
  • Cyberduck
  • Pocomail
  • BatMail

The Trojan tries to search and hack a user accessed server using the below mentioned FTP clients with the above commonly used password list.

  • FileZilla
  • BulletProof FTP
  • SmartFTP
  • CuteFTP 6,7,8
  • CuteFTP Lite
  • CuteFTP Pro
  • COREFTP
  • TurboFTP
  • Robo-FTP 3.7
  • LinasFTP
  • FFFTP
  • FTP Explorer
  • ClassicFTP
  • Frigate3
  • VanDyke
  • FTPRush
  • LeapFTP
  • FTPHost
  • Ghisler
  • WinFTP
  • PuTTY

It connects to the following remote location

  • www.lionsp[removed]st.it
  • spec02.di[removed]o.uk
  • stats-ke[removed]e
  • 50.11[removed]49
  • 195.15[removed]08
  • 173.2[removed]9.4
  • 192.16[removed]1.2
  • 94.10[removed]6
  • 195.8.6[removed]3
  • 5.9.2[removed]00
  • 94.10[removed]6

It creates below Registry Keys

  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager\Accounts
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\Nyimyg
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\WAB
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\WAB\WAB4
  • HKEY_USERS\S-1-5-21-1004336348-1326574676-839522115-1003\Software\Microsoft\WAB\WAB4\Wab File Name

It creates below Registry Key values:

  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications: 0x00000000
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List\16822:UDP: "16822:UDP:*:Enabled:UDP 16822"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List\22120:TCP: "22120:TCP:*:Enabled:TCP 22120"
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications: 0x00000000
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List\16822:UDP: "16822:UDP:*:Enabled:UDP 16822"
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List\22120:TCP: "22120:TCP:*:Enabled:TCP 22120"

Above registry entries are set by the malware to disable the windows firewall notification as well as it opens the TCP(22120) and UDP(16822) ports.

  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Windows\CurrentVersion\Run\{GUID}: ""%appdata%\Jyvyex\teuqf.exe""

The above registry entry makes sure that the malware automatically get executed whenever system startup

  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Server ID: 0x00000003
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\Account Name: "WhoWhere Internet Directory Service"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Server: "ldap.whowhere.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP URL: "http://www.whowhere.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Search Return: 0x00000064
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Timeout: 0x0000003C
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Authentication: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Simple Search: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere\LDAP Logo: "%ProgramFiles%\Common Files\Services\whowhere.bmp"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Server ID: 0x00000002
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\Account Name: "VeriSign Internet Directory Service"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Server: "directory.verisign.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP URL: "http://www.verisign.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Search Return: 0x00000064
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Timeout: 0x0000003C
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Authentication: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Search Base: "NULL"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Simple Search: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\VeriSign\LDAP Logo: "%ProgramFiles%\Common Files\Services\verisign.bmp"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Server ID: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\Account Name: "Bigfoot Internet Directory Service"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Server: "ldap.bigfoot.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP URL: "http://www.bigfoot.com"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Search Return: 0x00000064
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Timeout: 0x0000003C
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Authentication: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Simple Search: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot\LDAP Logo: "%ProgramFiles%\Common Files\Services\bigfoot.bmp"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Server ID: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\Account Name: "Active Directory"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Server: "NULL"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Search Return: 0x00000064
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Timeout: 0x0000003C
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Authentication: 0x00000002
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Simple Search: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Bind DN: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Port: 0x00000CC4
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Resolve Flag: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Secure Connection: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP User Name: "NULL"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC\LDAP Search Base: "NULL"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\PreConfigVer: 0x00000004
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Accounts\PreConfigVerNTDS: 0x00000001
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Server ID: 0x00000004
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\Internet Account Manager\Default LDAP Account: "Active Directory GC"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\WAB\WAB4\Wab File Name\: "%appdata%\Microsoft\Address Book\<Username>.wab"
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\WAB\WAB4\OlkContactRefresh: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\Microsoft\WAB\WAB4\OlkFolderRefresh: 0x00000000
  • HKEY_USERS\S-1-5-{varies}003\Software\WinRAR\HWID: {randomvalues}
  • HKEY_USERS\S-1-5-{varies}003\Software\WinRAR\754CE29950D80F93440A04D314385131: {random values}

Notes: - C:\windows\ - %windir% , C:\Documents and Settings\Administrator\Application Data-%appdata%

   

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).

   

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