Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Win32/Disabler.NAH

Aliases:Trojan horse Small.BVP (AVG) 
Type of infiltration:Trojan  
Size:2048 B 
Affected platforms:Microsoft Windows 
Signature database version:4913 (20100303) 

Short description

The trojan blocks execution of some programs.

Installation

The trojan does not create any copies of itself.

Other information

The following Registry entries are created:
  • [HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersion
    PoliciesExplorer]
    "DisallowRun" = 1
  • [HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersion
    PoliciesExplorerDisallowRun]
    "1" = "opera.exe"
    "2" = "firefox.exe"
    "3" = "chrome.exe"
The modified Registry entries will prevent specific files from being executed.