Threat Description

Kipis.A

Details

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

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

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



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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