Threat Description

Kipis.A

Details

Category: Malware
Type: Worm
Platform: W32
Aliases: Kipis.A, Email-Worm.Win32.Kipis.a, W32/Kipis.A@mm

Summary


A new email worm Kipis.A was found on 22th of December 2004.The worm spreads in emails that have a subject "Love", "I Love You", or "Happy New Year".



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

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Technical Details


When run the worm creates a mutex named "KiPiShx018AxR" to avoid running more than once simultaneously.

The worm copies itself as:

%WinDir%\regedit.com  

where %WinDir% is Windows folder, for example 'C:\Windows\' on a default installation of Windows XP. In effect, running "regedit" runs a copy of the worm instead of regedit.exe.

It also creates a directory

%WinDir%\security  

and copies itself in that directory as "svchost.exe". This path is added to system.ini file using the Windows API call WritePrivateProfileStringA from the Kernel32.dll. The entry will look like this:

[boot]  Shell=Explorer.exe "%WinDir%\security\svchost.exe"   

As win.ini is not supported by Windows NT, 2000 and XP, on these operating system the changes will be added to the Registry. As as result Windows will start the worm on every time it boots.

The worm also creates a file

%WinSysDir%\Jpg.bmp 			  

where %WinSysDir% is Windows System folder, for example 'C:\Windows\System32' on a default installation of Windows XP.

The file Jpg.bmp contains the following string

BMD -:+:- zzzzzzzzzzz 			  

Then the worm tries to open this file with mspaint.exe as a decoy. This file crashes mspaint.exe.

Email spreading

Kipis.A tries to locate the e-mail addresses from the Windows address book file. Additionally, it collects addresses from files with certain extensions on all hard disks and RAM drives from C: to Z. Files with the following extensions will be checked:

.tbb  .dbx  .doc  .htm  .adb  .txt   

The worm has its own SMTP engine which it uses to send infected emails. The messages sent by the worm will have one of the following subjects:

I Love You  Happy New Year  Love  

The worm uses the following body text in the message:

Hello! baby :-)  It can also use the following faked error message in the body: Server cannot send message.  _____________________________________________  On all questions address in a support service  The worm attaches itself to an infected message using one of the following names:   your present.scr  foto_03.scr  myfoto_04.scr  trax_06.scr  dom2.scr  foto_05.scr     
P2P spreading

The worm spreads itself in P2P networks. When it locates a shared folder, it copies itself there with one of the following names:

Nude Britney Spears.scr  Nude Pic_07.scr  Virtual Girl 2.01.com  KAV Pro 5.xx keygen.com  DrWeb 4.32 keygen.com  WinXP Sp2 key.com     
Payload

Kipis.A creates a thread that terminates security related software.

The worm also has a backdoor listening on port 1029. With this backdoor, additional programs can be uploaded and executed.



Detection


F-Secure Anti-Virus detects Kipis.A worm with the following update:

Detection Type: PC
Database: 2004-12-22_02



Technical Details:Jarkko Turkulainen, December 22th, 2004


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