Remove Yadurna. Description and removal instructions

 
Title: Yadurna

Type: Worms
Severity scale:Yadurna severity is 56  (56 / 100)
 
Yadurna is a worm that masquerades as a password recovery tool. It propagates through removable media and mapped network drives. Once executed, the parasite installs itself to the system and changes desktop background. Then it runs a payload. Yadurna blocks access to popular security-related web sites, modifies system settings, infects local web (.html) files and terminates or disables various running software including antiviruses, numerous security and system tools. The parasite secretly runs on every Windows startup.


Related files: csrss.exe, dalang mistiq.exe, dokument.exe, hp bunga citri lestari.exe, kota p4hlawan.exe, lo5tword.exe, lsass.exe, majnun was h3ere.exe, sma negeri 4.exe, smss.exe, Spoolsv.exe, svchost.exe, tugas.exe, windows [X1].exe, w32 wayang.exe, w4y4n9.exe, gatotkaca.scr

Yadurna properties:
• Hides from the user
• Stays resident in background

Automatic Yadurna removal:

remover for Yadurna

Yadurna manual removal:

Kill processes:
csrss.exe, dalang mistiq.exe, dokument.exe, hp bunga citri lestari.exe, kota p4hlawan.exe, lo5tword.exe, lsass.exe, majnun was h3ere.exe, sma negeri 4.exe, smss.exe, spoolsv.exe, svchost.exe, tugas.exe, windows [X1].exe, w32 wayang.exe, w4y4n9.exe
Delete registry values:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dalang mistiq
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dokument
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gatotkaca
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hanuman
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HP Bunga Citra Lestari
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kota P4hlawan
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lo5tword
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Majnun was h3re
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SMA Negeri 4
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tugas
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windows [X1]
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\w32 Wayang
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\w4y4n9
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell=explorer.exe [filename].exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System=[filename].exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableCMD=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr=1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ReportBookOk=0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable=0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan=0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoControlPanel=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDrives=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoTrayContextMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu=1
Delete files:
csrss.exe, dalang mistiq.exe, dokument.exe, hp bunga citri lestari.exe, kota p4hlawan.exe, lo5tword.exe, lsass.exe, majnun was h3ere.exe, sma negeri 4.exe, smss.exe, spoolsv.exe, svchost.exe, tugas.exe, windows [X1].exe, w32 wayang.exe, w4y4n9.exe, gatotkaca.scr
Delete directories:
C:\WINDOWS\Administrator durjana
C:\WINDOWS\Microsoft Administrator
C:\WINDOWS\nakula sadewa
C:\WINDOWS\Software Administrator
C:\WINDOWS\w4y4n9
C:\WINNT\Administrator durjana
C:\WINNT\Microsoft Administrator
C:\WINNT\nakula sadewa
C:\WINNT\Software Administrator
C:\WINNT\w4y4n9
C:\WINDOWS\System32\Administrator durjana
C:\WINDOWS\System32\Microsoft Administrator
C:\WINDOWS\System32\nakula sadewa
C:\WINDOWS\System32\Software Administrator
C:\WINDOWS\System32\w4y4n9
C:\WINNT\System32\Administrator durjana
C:\WINNT\System32\Microsoft Administrator
C:\WINNT\System32\nakula sadewa
C:\WINNT\System32\Software Administrator
C:\WINNT\System32\w4y4n9
C:\Documents and Settings\[Current User]\Application Data\Administrator durjana
C:\Documents and Settings\[Current User]\Application Data\Microsoft Administrator
C:\Documents and Settings\[Current User]\Application Data\nakula sadewa
C:\Documents and Settings\[Current User]\Application Data\Software Administrator
C:\Documents and Settings\[Current User]\Application Data\w4y4n9
[X2]:\w4y4n9
Misc:
[X1] is a random number.
[X2] is a drive letter.

The worm doesn't create all the listed files and registry entries. It usually creates only a few of them. Above are the complete lists of possible filenames and registry keys.

Other programs to remove Yadurna:

• SUPERAntiSpyware - Review - Download
• CounterSpy - Review - Download
• Windows Defender - Review - Download

Information added: 02/05/07
Information updated: 02/05/07

Additional resources related to Yadurna:

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