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WORM_HOLAR.C
Overview

Malware type: Trojan

Aliases: Email-Worm.Win32.Galil (Kaspersky), W32/Holar.gen (McAfee), W32.Galil@mm (Symantec), Worm/Holar.C.1 (Avira), W32/Holar-C (Sophos),

In the wild: No

Destructive: Yes

Language: English

Platform: Windows 95/98/NT/2000/ME/XP

Encrypted: No

Overall risk rating:


Reported infections:

Damage potential:

High

Distribution potential:

High

Description: 

This memory-resident, mass-mailing worm propagates copies of itself via email to all addresses found in the infected system using either its own SMTP (Simple Mail Transfer Protocol) engine or Microsoft Outlook (using MAPI or Messaging Application Programming Interface). It gathers email addresses from HTM and HTML files found in the infected system.

It sends out the following email message:

WORM_HOLAR.C spreads by mass mailing copies of itself to email addresses which it retrieves from HTM and HTML files on the infected machine. It sends email with the following details: Subject FWD: Crazy illegal sex ! Message body: Hii Is it really illegal in da USA? who knows :P If you have a weak heart i warn u DON'T see dis Clip. Emagine two young children havin crazy sex fo da first time togetha ! loooool i'm still wonderin where thier parents were? Good Fuck , oh sorry : > i mean  Good Luck ;) Bye

(Note that the message body contains initial text strings that trick recipients into thinking that the email message was forwarded by a Yahoo user.)

The executable attachment, which may arrive inside a ZIP file, has an icon that is usually associated with ShockWave Flash files.

At approximately 15 minutes after this worm has executed, it overwrites all files in all folders of writable drives with the following text strings:

1-No PeaCe WithOut WaR _ >> TT TT >>> 11>>>OoO>>9\Om >> TiiT >>> YX >>OOo>>11\Om >> OXBYL -> Haw >> ()()9.9.12MP _1s00x05y988z877c7y7756477v77x7777g8oro885t55oro312852oro14P,u 2- Made By ZaCker

It is written in Visual Basic, a high-level programming language, and is compressed using the UPX compression utility.

For additional information about this threat, see:
Solution
Technical Details

Description created: Dec. 5, 2002 9:51:28 AM GMT -0800
Description updated: Dec. 5, 2002 10:12:12 AM GMT -0800

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