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Trojan:W32/Vilsel

Classification

Category:

Malware

Type:

Trojan

Aliases:

  • Trojan.Win32.Vilsel.fk
  • Gen:Trojan.Heur.Vilsel.1
  • TrojanDownloader:Win32/Agent.KY (Microsoft)
  • Vilsel trojan (McAfee)

Summary

Variants in the Trojan:W32/Vilsel family download a file onto the system.

Removal

Technical Details

While active, the trojan also connect to and downloads files from the following website:

  • https://fc.webmasterpro.de/as_[...].php?name=run

Registry Changes

Trojan:W32/Vilsel disables the Windows firewall by modifying the registry entry:

  • HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile EnableFirewall = 0

It also makes changes to the following registry keys:

  • HKU\S-1-5-21-299502267-823518204-839522115-1003\Software\Microsoft\windows\CurrentVersion\Internet Settings MigrateProxy = 1
  • HKU\S-1-5-21-299502267-823518204-839522115-1003\Software\Microsoft\windows\CurrentVersion\Internet Settings ProxyEnable = 0
  • HKLM\SYSTEM\CURRENTCONTROLSET\HARDWARE PROFILES\CURRENT\Software\Microsoft\windows\CurrentVersion\Internet Settings ProxyEnable = 0
  • HKU\S-1-5-21-299502267-823518204-839522115-1003 SavedLegacySettings =

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