Archive A Reconstructed © MegaSecurity Database

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dropped file:
c:\WINDOWS\system32\Rat.exe
size: 52,736 bytes 

port: 20888 TCP

added to registry:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_X-RAT
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\X-Rat
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_X-RAT
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\X-Rat



tested on Windows XP
January 06, 2005

1. Configuration

  Use "X-Rat -setup" enter config mode, you can set:
  
* 1.Set listen port
  2.Set access password
  3.Set edit server password
  4.Set service name
  5.Set service display name
  6.Set EXE filename
* 7.Set reverse connection // NOT SUPPORTED NOW!
  8.View config information

  9.Help
  0.Complete

  ps: the option with "*" blackball each other, only 1 will active.

XSystem

This archive is an almost-complete reconstruction of the legendary Mega Security (also known as Kobayashi), a premier 90s-era "Trojan Database" where malware authors once showcased their work. After a decade offline, the site was brought back in August 2024 by its original creator, MasterRat, who authorized the Malware Gallery to host this modernized, searchable version of the collection. While the original site remains available for those seeking a nostalgic, old-school experience, we are proud to continue its legacy here. Full credit and thanks go to MasterRat and the retired Mega Security staff for their years of dedicated work in cataloging these historical samples.