Skip to main content

Worm.Win32.VB.an

Classification

Category:

Malware

Type:

Worm

Aliases:

  • Worm.Win32.VB.an

Summary

Worm.Win32.VB.an is a worm that spreads using P2P-networks. It also tries to disable several applications on infected system.

Removal

Technical Details

Installation to system

Worm.Win32.VB.an usually comes as 'Setup.exe'. When the worms file is started, it creates a folder 'winupdates' in system programs directory and copies itself there as 'winupdates.exe'.

The worm installs the following registry key for ensuring it will be started in the next system startup:

[HKLM\Software\Microsoft\Windows\CurrentVersion\Run] "winupdates" = "%ProgramFiles%\winupdates\winupdates.exe"

The worm also writes the following files to the Windows system folder:

cmd.com regedit.com taskkill.com tasklist.com tracert.com ping.com netstat.com

The contents of these files are characters 'MZ'. As 'com' extension is evaluated before 'exe' in Windows program execution, this trick tries to disable the execution of above programs with 'exe' extension.

P2P spreading

The worm tries to copy itself to several folders used by popular P2P software, such as Kazaa and Morpheus.

Protect your devices from malware with F‑Secure Total

Protecting your devices from malicious software is essential for maintaining online security. F‑Secure Total makes this easy, helping you to secure your devices in a brilliantly simple way.

  • Award‑winning antivirus and malware protection

  • Online browsing, banking, and shopping protection

  • 24/7 online identity and data breach monitoring

  • Unlimited VPN service to safe­guard your privacy

  • Password manager with private data protection

Choose how many devices you want to protect to get started.

  • Free customer support

  • Cancel anytime

  • The trial does not obligate you to buy the product

After 30 days your subscription will renew automatically for one year at €69.99.

More Support

Community

Ask questions in our Community.

User guides

Check the user guide for instructions.

Contact Support

Chat with with or call an agent.

Submit a Sample

Submit a file or URL for analysis.