Archive A Reconstructed © MegaSecurity Database

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Client:
size: 409.600 bytes

MultiClient:
size: 431.616 bytes


Server:
c:\WINDOWS\JOKER.EXE 

size: 159.232 bytes

port: 1337 TCP

startup:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "JOKER.EXE"

Joker-DDoS-Packet  -  Protocol

                             SourceForge-Version

Commands:                    (Client -> Server)

C1 = Target-IP ... p.ex. "C1 127.0.0.1"
C2 = Packetsize ... p.ex. "C2 200"
C3 = How many Packets do you want to send? ... p.ex. "C3 50"
C4 = Delaytime between Packets ... p.ex. "C4 100"
C5 = Start-Bombing ... p.ex. "C5"
C6 = Server deletes itself ... p.ex. "C6"

Errorcodes:                  (Server -> Client)

E1 = Could not dreate IGMP-Packet
E2 = Could not find target
E3 = Memory Error

Controle-Messages:           (Server -> Client)

MV = On connect Server will send its version ... p.ex. "MV 0.2"
M1 = Server will send an controle message to confirm targetIP... p.ex. "M1 127.0.0.1"
M2 = Server will send an controle message to confirm packetsize... p.ex. "M2 200"
M3 = Server will send an controle message to confirm how many packets it should send... p.ex. "M3 50"
M4 = Server will send an controle message to confirm delaytime... p.ex. "M4 100"
M5 = Shows send Joker is in progress to start bombing... p.ex. "M5"
M6 = Shows that Joker ended bombing-function... p.ex. "M6"

Gentleman

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.