Archive A Reconstructed © MegaSecurity Database
The Unexplained
Released 26 years, 11 months ago. May 1999
Copyright © MegaSecurity
By Darkstar
Informations
| Author | Darkstar |
| Family | The Unexplained |
| Category | Remote Access |
| Version | The Unexplained |
| Released Date | May 1999, 26 years, 11 months ago. |
| Language | Visual Basic |
Additional Information
Server:
dropped files:
port: 29891 TCP
startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "InetB00st"
data: %trojanpath%\Theunexplained1.0Inetb00st.EXE
tested on Windows XP
February 14, 2005
Author Information / Description
The Unexplained facts:
- It has 5 functions:
- Ping
- Execute
- Delete
- Upload
- Reboot
- Server size is 12,5 KBs / 12.800 bytes (ASPacked)
- Written in VB5
- Entire Source Code is released
- Trojan is entirely UDP based including the file transfer
(Sends one chunk, waits for reply, then sends another, and so on...)
I choose UDP so it wouldn't show up in netstat.
(UDP = Bad for large files)
Release date: 22nd of May 1999
Darkstar
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.