Win32/Buroonux [Threat Name] go to Threat

Win32/Buroonux.A [Threat Variant Name]

Category trojan
Size 73728 B
Aliases Trojan:Win32/Buroonux.A (Microsoft)
  Trojan.MulDrop5.33375 (Dr.Web)
Short description

Win32/Buroonux.A is a trojan that steals sensitive information. The trojan is probably a part of other malware.


When executed, the trojan creates the following files:

  • %commonappdata%\­Microsoft\­Windows\­LiveUpdata_Mem\­CrtRunTime.log (53248 B, Win32/Buroonux.A)
  • %commonappdata%\­Microsoft\­Windows\­Burn\­%computername%.dll (Win32/Buroonux.A)
  • %currentfolder%\­1.dll (53248 B)

In order to be executed on every system start, the trojan sets the following Registry entry:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Policies\­Explorer\­run]
    • "%computername%" = "%system%\­rundll32.exe "%commonappdata%\­Microsoft\­Windows\­Burn\­%computername%.dll ServiceMain""

The trojan may set the following Registry entries:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows NT\­CurrentVersion\­Winlogon]
    • "shell" = "explorer.exe,"%system%\­rundll32.exe %commonappdata%\­Microsoft\­Windows\­Burn\­%computername%.dll ServiceMain""
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows Media]
    • "XC" = %binaryvalue%

The trojan may create and run a new thread with its own program code within any running process.

After the installation is complete, the trojan deletes the original executable file.

Other information

It may perform the following actions:

  • monitor network traffic
  • run executable files
  • delete Registry entries
  • create Registry entries
  • create files
  • delete files

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