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Worm:Win32/Sality.AU


Microsoft security software detects and removes this threat.
 
This threat can install Virus:Win32/Sality.AU onto your PC, usually through networks or removable drives.
 
It can be installed by Exploit:Win32/CplLnk.A, which automatically runs the virus when you visit a malicious or hacked webpage.
 


What to do now

Use the following free Microsoft software to detect and remove this threat:

You should also run a full scan. A full scan might find other hidden malware.

Be careful when sharing files

Windows has a feature that lets you share files and folders on a network or shared PC. This feature is sometimes abused by malware to spread to other PCs within the network.

You can get more information and tips on how to share files safely from these pages:

You should turn off file sharing until you make sure that all infected PCs have been cleaned of any malware.

Remove program exceptions in the firewall

This threat might add itself to your Windows Firewall exception list. This means it can go online without being blocked. To remove it from the exception list, do the following:

For Windows 8.1 :

  1. Open Windows Firewall by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering firewall in the search box, tapping or clicking Settings, and then tapping or clicking Windows Firewall.
  2. In the left pane, tap or click Allow an app or feature through Windows Firewall.
  3. Tap or click Change settings. You might be asked for an admin password or to confirm your choice.
  4. Select the check box next to the app you want to allow, select the network types you want to allow communication on, and then click OK.

For Windows 7:

  1. Click Start, select Control Panel, then System and Security.
  2. Select Windows Firewall.
  3. On the menu on the left, select Allow a program through Windows Firewall. If you're prompted, type the password or provide confirmation.
  4. Click Change Settings. If you're prompted, type the password or provide confirmation.
  5. Select <program name> from the list of allowed programs and features. Click Remove.
  6. Click OK.

For Windows Vista:

  1. Click Start, select Control Panel, then Security Center.
  2. On the menu on the left, select Windows Firewall.
  3. On the menu on the left, select Allow a program through Windows Firewall. If you are prompted, type the password or provide confirmation.
  4. Select <program name> from the list of allowed programs and features. Click Delete.
  5. Click OK.
Additional remediation instructions for this threat

This threat might make lasting changes to your PC's settings that won't be restored when it's cleaned. The following links can help change these settings back to what you want:

Get more help

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

If you’re using Windows XP, see our Windows XP end of support page.

Threat behavior

Worm:Win32/Sality.AU is a worm that spreads a file detected as Virus:Win32/Sality.AU into network shares. Worm:Win32/Sality.AU also drops .LNK files, detected as Exploit:Win32/CplLnk.A, which automatically run the dropped virus.
Installation
Worm:Win32/Sality.AU creates the following mutex:
 
  • woemnm593jfe
 
It also creates the following registry entry as part of its installation routine:
 
Adds value: "session"
with data: <numeric value>
To subkey : HKCU\SOFTWARE\zrfke
Spreads via...
Network shares
Worm:Win32/Sality.AU enumerates network resources in the computer to look for network shares. If found, Worm:Win32/Sality.AU drops the following file:
 
~<5 random alphanumeric characters>.tmp - detected as Virus:Win32/Sality.AU
 
for example:
 
\\<network path>\~24e1e.tmp
 
To run the dropped virus, it also drops any of the following .LNK files, which are detected as Exploit:Win32/CplLnk.A:
 
Aline.lnk
AnnaBensonSexvideo.lnk
Anna.lnk
Audra.lnk
Badgirl.lnk
Barbi.lnk
BritneySpearsXXX.lnk
Caitie.lnk
CopyofNewFile.lnk
CopyofNewFolder.lnk
CopyofShortcut.lnk
Drivers.lnk
Fotograf.lnk
Galleryphotos.lnk
Jammie.lnk
JennaElfmansexanaldeepthroat.lnk
Juli.lnk
Julie.lnk
KateBeckinsalenudepictures.lnk
Katrina.lnk
Katrina.lnk
Kelley.lnk
Lisa.lnk
Mandy.lnk
Mary-Anne.lnk
Mary.lnk
MissAmericaPorno.lnk
MyPhotos.lnk
Mybeautifulperson.lnk
Myphotoalbum.lnk
Myphotos.lnk
Myphotos.lnk
NewFolder.lnk
NewShortcut.lnk
ParisHiltonXXXArchive.lnk
Photoalbum.lnk
Picture.lnk
PornoScreensaver.lnk
Rena.lnk
Sara.lnk
Serials.lnkBarrettJacksonnudephotos.lnk
Shortcut.lnk
Tammy.lnk
XXXhardcore.lnk
XXX.lnkXXX
archive.lnk
beautiful.lnk
caroline.lnk
groom.lnk
kate.lnk
kleopatra.lnk
rebecca.lnk
stacy.lnk
 
Analysis by Marianne Mallen

Symptoms

System changes
The following system changes may indicate the presence of this malware:
    • The presence of the following subkey:
      HKCU\SOFTWARE\zrfke
    • The presence of the following files in your network shares:
Aline.lnk
AnnaBensonSexvideo.lnk
Anna.lnk
Audra.lnk
Badgirl.lnk
Barbi.lnk
BritneySpearsXXX.lnk
Caitie.lnk
CopyofNewFile.lnk
CopyofNewFolder.lnk
CopyofShortcut.lnk
Drivers.lnk
Fotograf.lnk
Galleryphotos.lnk
Jammie.lnk
JennaElfmansexanaldeepthroat.lnk
Juli.lnk
Julie.lnk
KateBeckinsalenudepictures.lnk
Katrina.lnk
Katrina.lnk
Kelley.lnk
Lisa.lnk
Mandy.lnk
Mary-Anne.lnk
Mary.lnk
MissAmericaPorno.lnk
MyPhotos.lnk
Mybeautifulperson.lnk
Myphotoalbum.lnk
Myphotos.lnk
Myphotos.lnk
NewFolder.lnk
NewShortcut.lnk
ParisHiltonXXXArchive.lnk
Photoalbum.lnk
Picture.lnk
PornoScreensaver.lnk
Rena.lnk
Sara.lnk
Serials.lnkBarrettJacksonnudephotos.lnk
Shortcut.lnk
Tammy.lnk
XXXhardcore.lnk
XXX.lnkXXX
archive.lnk
beautiful.lnk
caroline.lnk
groom.lnk
kate.lnk
kleopatra.lnk
rebecca.lnk
stacy.lnk

Prevention


Alert level: Severe
First detected by definition: 1.87.582.0
Latest detected by definition: 1.173.2181.0 and higher
First detected on: Jul 26, 2010
This entry was first published on: Jul 30, 2010
This entry was updated on: Nov 07, 2014

This threat is also detected as:
  • Trojan-Dropper.Win32.Sality.b (Kaspersky)
  • Win32/Sality.NBA (ESET)
  • Mal/Sality-D (Sophos)
  • PE_SALITY.LNK-O (Trend Micro)