Eyeveg.f

Classification

Malware

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Worm.Win32.Eyeveg.f, W32/Eyeveg.H@mm, W32/Eyeveg.worm.gen, WORM_WURMARK.J

Summary

Eyeveg.f is a network worm with password stealing, backdoor capabilities and email spreading functionality.

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Suspect a file is incorrectly detected (a False Positive)?

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note You need administrative rights to change the settings.

For more Support

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User Guide

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Submit a sample

Submit a file or URL for further analysis.

Technical Details

The worm is a Windows PE executable file 80384 bytes long.

Installation to system

When run, the worm installs itself to system. It copies its file to %SYSTEM% folder under a pseudo-random name. To ensure the worm is started next time the system is started a registry key is created:

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]  "" = "%SYSTEM%\.exe"   

where <pseudo_random_str> is a ASCII string that is generated by the worm depending on the local disk characteristics and %SYSTEM% is Windows System folder name.

It then drops a BHO (Browser Helper Object) DLL and registers it. The name of the BHO is also pseudo-random. The BHO is a spying trojan which collects various information and is usually activated automatically by Windows when Internet Explorer is started.

A third file is dropped. It is a ZIP archive that contains the main worm. The ZIP has on of the following names:

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
"" = "%SYSTEM%\.exe"
 

and contains the worm's body under one of the following names:

screensaver.scr  song.wav.scr  music.mp3.scr  video.avi.scr  photo.jpg.scr  girls.jpg.scr  pic.jpg.scr  message.txt.scr  image.jpg.scr  news.doc.scr  details.doc.scr  resume.doc.scr  love.jpg.scr  readme.txt.scr   

Spreading in email

Eyeveg.f has mass-mailing capabilities. It will collect email addresses from files with extensions:

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
"" = "%SYSTEM%\.exe"
 

The worm avoids sending messages to emails which contain the following strings:

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
"" = "%SYSTEM%\.exe"
 

Payload

The worm has functionality that allows it to:

  • 1. Upload files to 'www.melaniecarroll.biz' server
  • 2. Download files from 'www.melaniecarroll.biz' server
  • 3. Find files
  • 4. Copy files
  • 5. Start files
  • 6. Delete files
  • 7. List files
  • 8. Get system information