Threat Group Cards: A Threat Actor Encyclopedia
Archived: 2026-04-05 18:51:29 UTC
Home > List all groups > List all tools > List all groups using tool Rifdoor
 Tool: Rifdoor
Names Rifdoor
Category Malware
Type Backdoor
Description
(AhnLab) Rifdoor was first discovered in November 2015, and it remained active until early 2016. A Rifdoor variant w
to attack SEOUL ADEX exhibitors in 2015 and was found in the hacking incidents of security companies in early 201
When it enters the system, Rifdoor generates a file by adding garbage data to the 4 bytes of the last part of the file. Th
since the hash value changes each time the system is infected, the malware cannot be found in the system with a simpl
value.
Information
MITRE ATT&CK Malpedia AlienVault OTX Last change to this tool card: 30 December 2022
Download this tool card in JSON format
All groups using tool Rifdoor
Changed Name Country Observed
APT groups
 Lazarus Group, Hidden Cobra, Labyrinth Chollima 2007-May 2025
1 group listed (1 APT, 0 other, 0 unknown)
Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=52c89d28-fe3b-4d5f-9881-a0df2180f712
https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=52c89d28-fe3b-4d5f-9881-a0df2180f712
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