Sophos

W32/Ahker-J

Aliases
  • Email-Worm.Win32.Anker.p
  • W32.Ahker@mm
  • WORM_AHKER.J
  • AgentHacker
  • trojan
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Email attachments
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 6 September 2005 21:15:16 (GMT)
Detected by All Sophos products
  • Free virus, spyware, and adware scan
  • Test your existing anti-virus protection
  • Find threats your anti-virus missed

Action

More Information

W32/Ahker-J is a mass-mailing worm that arrives in the email with the following characteristics:

From:chosen from

peter_parker@hotmail.com
mariah_hillary@aol.com
johnloke@msn.uk
bazzi@microsoft.com
sarah_alia@yahoo.com
seniormanager@byblos.com
michel_bado@gmail.com
otacon@konami.jp
majortom@fbi.gov
hilton_britgette@ahker.lb
billy@hacker.com
agent@hacker.com

Subject:chosen from:

Returned mail
Delivery Error
Status
Server Report
Mail Transaction Failed
Mail Delivery System
Do not reply to this email!
Error
FWD:Hello
FWD:Hey
There you go!
Password Cracked!

Message body:chosen from

sendmail daemon reported:
Error #804 occured during SMTP session. Partial message has been received.
Attachment: Message.Zip

Mail transaction failed. Partial message is available.
Attachment: Message.Zip

The message contains Unicode characters and has been sent as a binary attachment.

The message contains MIME-encoded graphics and has been sent as a binary attachment.

The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment.

Your credit card was charged for $500 USD. For additional information see the attachment.

ESMTP [Secure Mail System #334]: Secure message is attached.

Encrypted message is available.

You have visited illegal websites!!
I have a big list of the websites you surfed.

Bad Gateway: The message has been attached.

There is the password you requested!

Hotmail Cracker Version 2.25 attached!

Attachment:

Message.Zip

W32/Ahker-J spreads by emailing itself to email addresses found on an infected computer.

When first run, W32/Ahker-J copies itself to the <Windows folder>\Bazzi.exe.

In order to be able to run automatically when Windows starts up W32/Ahker-J sets the following registry entry:

HKLME\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft AntiSpyware
<Windows folder>\Bazzi.exe

W32/Ahker-J may download a version of mswinsck.ocx, Microsoft Windows's Winsock DLL from the certain website in order to be able to run on the W98 and Windows ME platforms.

W32/Ahker-J initiate a flooding attack against predefined websites thus preventing access to them.

Also W32/Ahker-J may disable Download Accelerator Plus (DAP) download application.

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