Trusted Design

WEBC2-RAVE (FAMILY)

概要

A WEBC2 backdoor is designed to retrieve a Web page from a pre-determined C2 server. It expects the Web page to contain special HTML tags; the backdoor will attempt to interpret the data between the tags as commands. This family of malware will set itself up as a service and connect out to a hardcoded web page and read a modified base64 string from this webpage. The later versions of this malware supports three commands (earlier ones are just downloaders or reverse shells). The first commands will sleep the malware for N number of hours. The second command will download a binary from the encoded HTML comment and execute it on the infected host. The third will spawn an encoded reverse shell to an attacker specified location and port.

Created: 2026-02-23

Indicators

Indicatorsは見つかっていない。

類似Pulses

このPulseに関連する脅威アクター (事実ベース)

CURIUM

Score: 3.53
Matched TTPs:
  • T1505.003 - Web Shell
  • T1189 - Drive-by Compromise
MITREへのリンク →

Dragonfly

Score: 5.02
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

APT28

Score: 8.61
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

OilRig

Score: 15.17
Matched TTPs:
  • T1505.003 - Web Shell
  • T1218.001 - Compiled HTML File
  • T1203 - Exploitation for Client Execution
  • T1137.004 - Outlook Home Page
  • T1071.001 - Web Protocols
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

APT39

Score: 5.35
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.002 - Bidirectional Communication
  • T1071.001 - Web Protocols
MITREへのリンク →

Mustang Panda

Score: 14.25
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1219.002 - Remote Desktop Software
  • T1071.001 - Web Protocols
  • T1027.007 - Dynamic API Resolution
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

Threat Group-3390

Score: 6.21
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

Tropic Trooper

Score: 4.45
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
MITREへのリンク →

Ember Bear

Score: 3.26
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
MITREへのリンク →

Sandworm Team

Score: 6.84
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
MITREへのリンク →

Tonto Team

Score: 3.26
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
MITREへのリンク →

Volt Typhoon

Score: 8.73
Matched TTPs:
  • T1505.003 - Web Shell
  • T1059.004 - Unix Shell
  • T1614 - System Location Discovery
MITREへのリンク →

APT38

Score: 12.70
Matched TTPs:
  • T1505.003 - Web Shell
  • T1218.001 - Compiled HTML File
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
  • T1036.006 - Space after Filename
MITREへのリンク →

APT29

Score: 16.87
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1090.004 - Domain Fronting
  • T1027.006 - HTML Smuggling
  • T1651 - Cloud Administration Command
MITREへのリンク →

Magic Hound

Score: 7.12
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.002 - Bidirectional Communication
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

APT32

Score: 8.96
Matched TTPs:
  • T1505.003 - Web Shell
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

Leviathan

Score: 9.16
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.003 - One-Way Communication
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

Sea Turtle

Score: 7.28
Matched TTPs:
  • T1505.003 - Web Shell
  • T1059.004 - Unix Shell
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
MITREへのリンク →

Kimsuky

Score: 11.57
Matched TTPs:
  • T1505.003 - Web Shell
  • T1102.002 - Bidirectional Communication
  • T1219.002 - Remote Desktop Software
  • T1071.001 - Web Protocols
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

FIN8

Score: 8.47
Matched TTPs:
  • T1055.004 - Asynchronous Procedure Call
  • T1071.001 - Web Protocols
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
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: 8.46
Matched TTPs:
  • T1205.001 - Port Knocking
  • T1059.004 - Unix Shell
  • T1203 - Exploitation for Client Execution
MITREへのリンク →

Gamaredon Group

Score: 7.72
Matched TTPs:
  • T1102.003 - One-Way Communication
  • T1102.002 - Bidirectional Communication
  • T1071.001 - Web Protocols
MITREへのリンク →

Dark Caracal

Score: 6.39
Matched TTPs:
  • T1218.001 - Compiled HTML File
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

Silence

Score: 3.44
Matched TTPs:
  • T1218.001 - Compiled HTML File
MITREへのリンク →

APT41

Score: 12.24
Matched TTPs:
  • T1218.001 - Compiled HTML File
  • T1059.004 - Unix Shell
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

TeamTNT

Score: 4.02
Matched TTPs:
  • T1059.004 - Unix Shell
  • T1071.001 - Web Protocols
MITREへのリンク →

Contagious Interview

Score: 8.51
Matched TTPs:
  • T1059.004 - Unix Shell
  • T1219.002 - Remote Desktop Software
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

Rocke

Score: 7.31
Matched TTPs:
  • T1059.004 - Unix Shell
  • T1071.001 - Web Protocols
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

Scattered Spider

Score: 5.76
Matched TTPs:
  • T1059.004 - Unix Shell
  • T1219.002 - Remote Desktop Software
MITREへのリンク →

APT37

Score: 6.84
Matched TTPs:
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

Lazarus Group

Score: 13.72
Matched TTPs:
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
  • T1027.007 - Dynamic API Resolution
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

APT12

Score: 3.89
Matched TTPs:
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
MITREへのリンク →

Turla

Score: 5.35
Matched TTPs:
  • T1102.002 - Bidirectional Communication
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
MITREへのリンク →

MuddyWater

Score: 5.08
Matched TTPs:
  • T1102.002 - Bidirectional Communication
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
MITREへのリンク →

Andariel

Score: 3.26
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

Patchwork

Score: 6.54
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

Axiom

Score: 7.80
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1001.002 - Steganography
MITREへのリンク →

BRONZE BUTLER

Score: 7.73
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

Transparent Tribe

Score: 3.26
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

Elderwood

Score: 3.26
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

Darkhotel

Score: 3.26
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1189 - Drive-by Compromise
MITREへのリンク →

APT33

Score: 5.43
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

SideCopy

Score: 4.13
Matched TTPs:
  • T1614 - System Location Discovery
MITREへのリンク →

Thrip

Score: 5.67
Matched TTPs:
  • T1219.002 - Remote Desktop Software
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
MITREへのリンク →

RTM

Score: 7.98
Matched TTPs:
  • T1219.002 - Remote Desktop Software
  • T1189 - Drive-by Compromise
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

Wizard Spider

Score: 3.93
Matched TTPs:
  • T1071.001 - Web Protocols
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
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 →

このPulseに関連する脅威アクター (推論ベース)

APT29

Score: 0.76
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1027.006 - HTML Smuggling
  • T1505.003 - Web Shell
  • T1090.004 - Domain Fronting
  • T1651 - Cloud Administration Command
MITREへのリンク →

OilRig

Score: 0.68
Matched TTPs:
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
  • T1505.003 - Web Shell
  • T1137.004 - Outlook Home Page
  • T1218.001 - Compiled HTML File
MITREへのリンク →

Lazarus Group

Score: 0.64
Matched TTPs:
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
  • T1203 - Exploitation for Client Execution
  • T1027.007 - Dynamic API Resolution
  • T1189 - Drive-by Compromise
  • T1071.001 - Web Protocols
  • T1102.002 - Bidirectional Communication
MITREへのリンク →

Mustang Panda

Score: 0.63
Matched TTPs:
  • T1048.003 - Exfiltration Over Unencrypted Non-C2 Protocol
  • T1203 - Exploitation for Client Execution
  • T1027.007 - Dynamic API Resolution
  • T1071.001 - Web Protocols
  • T1505.003 - Web Shell
  • T1219.002 - Remote Desktop Software
MITREへのリンク →

APT38

Score: 0.59
Matched TTPs:
  • T1071.001 - Web Protocols
  • T1189 - Drive-by Compromise
  • T1505.003 - Web Shell
  • T1218.001 - Compiled HTML File
  • T1036.006 - Space after Filename
MITREへのリンク →

APT41

Score: 0.58
Matched TTPs:
  • T1203 - Exploitation for Client Execution
  • T1071.001 - Web Protocols
  • T1059.004 - Unix Shell
  • T1218.001 - Compiled HTML File
  • T1102.001 - Dead Drop Resolver
MITREへのリンク →

Related CVEs

このPulseに見つかったCVEはありません。

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