Trusted Design

ISO Images of Linux Mint with Tsunami Backdoor

概要

This incident involves a set of ISO images of Linux Mint that were distributed from the linuxmint.com website as a consequence of the website being compromised. Starting Feb 20, the WordPress site hosting linuxmint.com forwarded ISO image download requests to a URL hosted on a server in Bulgaria. The images had been tampered with to include a Tsunami IRC bot that called back to a set of C2 hosts, one of which was hosted on an IP in the same range and same ISP as the ISO image files were hosted on. The adversary used a Perl script to run the bot.

Created: 2026-02-23

Indicators

Indicatorsは見つかっていない。

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このPulseに関連する脅威アクター (事実ベース)

Magic Hound

Score: 8.67

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication
T1189 - Drive-by Compromise
T1046 - Network Service Discovery

MITREへのリンク →

HEXANE

Score: 5.14

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication

MITREへのリンク →

APT29

Score: 7.28

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1090.004 - Domain Fronting

MITREへのリンク →

Gamaredon Group

Score: 12.14

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1491.001 - Internal Defacement
T1102.002 - Bidirectional Communication
T1027.015 - Compression

MITREへのリンク →

TA2541

Score: 5.90

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1027.015 - Compression

MITREへのリンク →

Lotus Blossom

Score: 4.51

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1046 - Network Service Discovery

MITREへのリンク →

FIN13

Score: 4.51

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1046 - Network Service Discovery

MITREへのリンク →

Turla

Score: 9.74

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication
T1189 - Drive-by Compromise
T1584.004 - Server

MITREへのリンク →

Volt Typhoon

Score: 7.34

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1584.004 - Server
T1046 - Network Service Discovery

MITREへのリンク →

PROMETHIUM

Score: 5.90

Matched TTPs:

T1205.001 - Port Knocking
T1189 - Drive-by Compromise

MITREへのリンク →

UNC3886

Score: 4.13

Matched TTPs:

T1205.001 - Port Knocking

MITREへのリンク →

BlackByte

Score: 5.61

Matched TTPs:

T1491.001 - Internal Defacement
T1046 - Network Service Discovery

MITREへのリンク →

Lazarus Group

Score: 12.61

Matched TTPs:

T1491.001 - Internal Defacement
T1102.002 - Bidirectional Communication
T1189 - Drive-by Compromise
T1584.004 - Server
T1046 - Network Service Discovery

MITREへのリンク →

TeamTNT

Score: 6.30

Matched TTPs:

T1204.003 - Malicious Image
T1046 - Network Service Discovery

MITREへのリンク →

Kimsuky

Score: 6.24

Matched TTPs:

T1102.002 - Bidirectional Communication
T1587 - Develop Capabilities

MITREへのリンク →

APT37

Score: 4.16

Matched TTPs:

T1102.002 - Bidirectional Communication
T1189 - Drive-by Compromise

MITREへのリンク →

APT39

Score: 4.16

Matched TTPs:

T1102.002 - Bidirectional Communication
T1046 - Network Service Discovery

MITREへのリンク →

Sandworm Team

Score: 5.23

Matched TTPs:

T1102.002 - Bidirectional Communication
T1584.004 - Server

MITREへのリンク →

APT28

Score: 4.16

Matched TTPs:

T1102.002 - Bidirectional Communication
T1189 - Drive-by Compromise

MITREへのリンク →

Earth Lusca

Score: 4.60

Matched TTPs:

T1189 - Drive-by Compromise
T1584.004 - Server

MITREへのリンク →

Axiom

Score: 6.30

Matched TTPs:

T1189 - Drive-by Compromise
T1001.002 - Steganography

MITREへのリンク →

Dragonfly

Score: 4.60

Matched TTPs:

T1189 - Drive-by Compromise
T1584.004 - Server

MITREへのリンク →

Leviathan

Score: 7.75

Matched TTPs:

T1189 - Drive-by Compromise
T1584.004 - Server
T1027.015 - Compression

MITREへのリンク →

APT32

Score: 3.53

Matched TTPs:

T1189 - Drive-by Compromise
T1046 - Network Service Discovery

MITREへのリンク →

Threat Group-3390

Score: 6.68

Matched TTPs:

T1189 - Drive-by Compromise
T1046 - Network Service Discovery
T1027.015 - Compression

MITREへのリンク →

Leafminer

Score: 3.53

Matched TTPs:

T1189 - Drive-by Compromise
T1046 - Network Service Discovery

MITREへのリンク →

Daggerfly

Score: 4.60

Matched TTPs:

T1189 - Drive-by Compromise
T1584.004 - Server

MITREへのリンク →

Equation

Score: 4.13

Matched TTPs:

T1564.005 - Hidden File System

MITREへのリンク →

Strider

Score: 4.13

Matched TTPs:

T1564.005 - Hidden File System

MITREへのリンク →

Medusa Group

Score: 6.30

Matched TTPs:

T1046 - Network Service Discovery
T1218.014 - MMC

MITREへのリンク →

Contagious Interview

Score: 3.84

Matched TTPs:

T1587 - Develop Capabilities

MITREへのリンク →

Moonstone Sleet

Score: 3.84

Matched TTPs:

T1587 - Develop Capabilities

MITREへのリンク →

Molerats

Score: 3.15

Matched TTPs:

T1027.015 - Compression

MITREへのリンク →

Higaisa

Score: 3.15

Matched TTPs:

T1027.015 - Compression

MITREへのリンク →

Mofang

Score: 3.15

Matched TTPs:

T1027.015 - Compression

MITREへのリンク →

このPulseに関連する脅威アクター (推論ベース)

Lazarus Group

Score: 0.80

Matched TTPs:

T1046 - Network Service Discovery
T1189 - Drive-by Compromise
T1102.002 - Bidirectional Communication
T1584.004 - Server
T1491.001 - Internal Defacement

MITREへのリンク →

Gamaredon Group

Score: 0.75

Matched TTPs:

T1491.001 - Internal Defacement
T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication
T1027.015 - Compression

MITREへのリンク →

Turla

Score: 0.65

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication
T1584.004 - Server
T1189 - Drive-by Compromise

MITREへのリンク →

Magic Hound

Score: 0.56

Matched TTPs:

T1016.001 - Internet Connection Discovery
T1102.002 - Bidirectional Communication
T1046 - Network Service Discovery
T1189 - Drive-by Compromise

MITREへのリンク →

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