The Week in Review from Stamus Labs

Welcome to the weekly threat detection update report from Stamus Networks. Each week, you will receive this email with a summary of the updates.

Current Stamus Threat Intelligence (STI) release version: 1479

This week, in addition to daily ruleset and IOC updates, we provided Stamus Security Platform customers with the following improved defense(s):

New threat detection(s) added [1]: 8 (Braodo, Tamperedchef, iMonitor EAM CnC, Silk Lure, GlassWorm, CAPI Backdoor, Kamasers, Librarian Ghoul)
Major changes to detections(s) [2]: 162
Updated threat detection(s) [3]: 259

Note: a "method" as referenced below, is a discrete detection vector for a given threat.

New Threat(s) Detected

The following detections were added to your Clear NDR this past week:

Braodo (Loader)

Braodo Stealer is a Python-based malware that gathers cookies, credentials, and system information from browsers, saving it as a zip file and sending it to a Telegram Channel.

Total number of detection methods: 1
Kill chain phase(s): delivery
MITRE ATT&CK: T1105

Tamperedchef (Data Theft)

Truesec has identified a significant cybercrime campaign using fraudulent websites and Google ads to distribute a trojanized PDF editor named TamperedChef, which steals sensitive information like credentials and cookies.

Tamperedchef - Malpedia |

Total number of detection methods: 4
Kill chain phase(s): installation, delivery
MITRE ATT&CK: T1071

iMonitor EAM CnC (Data Theft)

The world's first employee monitoring software, iMonitor EAM, can store computer and internet activities in a centralized database, track work time, monitor multiple desktops simultaneously, and record computer and software assets.

Total number of detection methods: 9
Kill chain phase(s): command and control
MITRE ATT&CK: T1219

Silk Lure (APT)

Threat actors target Chinese individuals in FinTech, cryptocurrency, and trading roles with spear-phishing emails containing malicious .LNK files to initiate compromise through scheduled tasks using ValleyRAT malware.

Total number of detection methods: 4
Kill chain phase(s): command and control, delivery
MITRE ATT&CK: T1105

GlassWorm (RAT)

GlassWorm infects systems to harvest credentials, target cryptocurrency wallets, deploy proxy servers, install VNC servers, and spread by compromising additional packages and extensions.

GlassWorm - Malpedia |

Total number of detection methods: 1
Kill chain phase(s): installation
MITRE ATT&CK: T1071

CAPI Backdoor (Backdoor)

Seqrite Labs Research uncovered a campaign targeting Russian Automobile-Commerce industry with unknown .NET malware dubbed CAPI Backdoor. Malicious ZIP file, containing decoys, spear-phished victims to implant malware.

Total number of detection methods: 3
Kill chain phase(s): command and control

Kamasers (Botnet)

Kamasers is a bot with backdoor capabilities that communicates with a C2 server, leveraging outbound connections to trusted platforms like Telegram, Dropbox, and GitHub Gist. It is controlled remotely through a web-based C2 panel with a dark theme.

Total number of detection methods: 3
Kill chain phase(s): command and control
MITRE ATT&CK: T1071

Librarian Ghoul (APT)

Librarian Ghouls, an APT group targeting entities in Russia and CIS, utilize legitimate third-party software, command files, and PowerShell scripts to establish remote access, steal credentials, and deploy an XMRig crypto miner.

Total number of detection methods: 75
Kill chain phase(s): command and control
MITRE ATT&CK: T1071

Major Detection Changes

The following detections were updated this past week with changes to kill chain phase(s) or MITRE ATT&CK tactic(s)/technique(s):

ClickFix (Phishing)

In April 2024, researchers found compromised sites leading to an iframe on pley[.]es showing an error message. The payload domain was taken offline, preventing infection. Later, the iframe was replaced with the ClearFake inject.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s): exploitation, delivery, command and control
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1071, T1027, T1189, T1102, T1036, T1105
Methods added: 22

Fake Browser (Trojan)

Attackers infect enterprise networks with malware by promoting fake browser updates on hacked websites, leading to the installation of banking trojans and later ransomware encryption on compromised networks.

Added kill chain phase(s): exploitation
Previously supported kill chain phase(s): delivery, exploitation, command and control
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1071, T1189
Methods added: 6

File download from Newly Registered Domain (Downloader)

Downloading files from newly registered domains can indicate a compromise due to attackers using them to avoid detection. These domains lack trust history and are commonly used in cyber attacks like phishing or malware.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s):
MITRE ATT&CK added: T1105
Methods added: 14

Lumma (Data Theft)

Lumma is a C-based information stealer sold on Russian underground forums and Telegram by LummaC since August 2022. It targets cryptocurrency wallets and has file grabber capabilities.

Added kill chain phase(s): command and control, actions on objectives
Previously supported kill chain phase(s): actions on objectives, command and control, installation, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1005, T1071, T1573, T1105
Methods added: 15

MuddyWater (APT)

MuddyWater is an Iranian threat group targeting mainly Middle Eastern nations, with victims in telecommunications, government, and oil sectors. Previously linked to FIN7, now believed to be a distinct group for espionage.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery, actions on objectives
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1071
Methods added: 16

NetSupport RAT (RAT)

Remote Access Trojans allow covert surveillance and unauthorized access to victim PCs, collecting keystrokes, passwords, screenshots, and more. They differ from keyloggers by providing remote access capabilities to attackers.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): actions on objectives, command and control, exploitation, installation
MITRE ATT&CK added: T1105
Previously existing MITRE ATT&CK: T1071, T1105
Methods added: 3

RAT Generic (RAT)

Remote Access Trojans allow covert surveillance and unauthorized access to victim PCs, collecting data like keystrokes and screenshots. They differ from keyloggers by enabling remote access for attackers.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): installation, command and control, actions on objectives, delivery
MITRE ATT&CK added: T1573
Previously existing MITRE ATT&CK: T1071, T1041, T1573
Methods added: 3

SocGholish (Social Engineering)

Malwarebytes found a new social engineering toolkit that uses compromised websites to perform advanced fingerprinting checks and deliver the NetSupport RAT payload.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, exploitation, delivery, reconnaissance, actions on objectives
Methods added: 36

TA4903 (APT)

Advanced persistent threats (APTs) are stealthy threat actors, often nation states or state-sponsored groups, who gain unauthorized access to networks for political or economic motivations, utilizing various tactics to remain undetected.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s): delivery
Methods added: 6

TransparentTribe (APT)

Group targeting Indian Army and related assets in India, as well as activists and civil society in Pakistan, attributed to a Pakistani connection by TrendMicro and others.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): delivery, command and control
MITRE ATT&CK added: T1041
Previously existing MITRE ATT&CK: T1071
Methods added: 9

XWorm (RAT)

Cyble research labs found a malware developer advertising a powerful Windows RAT on the dark web during a threat-hunting exercise.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
MITRE ATT&CK added: T1573
Previously existing MITRE ATT&CK: T1071, T1573
Methods added: 32

Other Threat Detection Update(s)

The following threat detection(s) were improved this past week with new or updated threat methods.

Name of threat	New coverage			Total coverage			Last updated
	New Detection methods	Kill chain phases	Protocols involved	Detection methods	Kill chain phases	Protocols involved
Braodo	1	delivery	http	1	delivery	http	2025-10-24
CAPI Backdoor	3	command and control	dns, tls, http	3	command and control	dns, tls, http	2025-10-24
ClickFix	22	delivery	dns, tls, http	238	command and control, delivery, exploitation	dns, http, tls	2025-10-22
Fake Browser	6	exploitation	dns, tls, http	1769	command and control, delivery, exploitation	dns, http, tls	2025-10-25
File download from Newly Registered Domain	14	delivery	http	14	delivery	http	2025-10-24
GlassWorm	1	installation	http	1	installation	http	2025-10-24
Kamasers	3	command and control	http	3	command and control	http	2025-10-24
Librarian Ghoul	72	command and control	dns, tls, http	75	command and control	dns, tls, http	2025-10-24
Lumma	15	command and control, actions on objectives	dns, tls, http	6910	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-10-25
MuddyWater	16	command and control	http, dns, tls	99	actions on objectives, command and control, delivery	dns, http, tcp, tls	2025-10-25
NetSupport RAT	3	command and control	http	164	actions on objectives, command and control, exploitation, installation	dns, http, tls	2025-10-24
RAT Generic	3	command and control	tcp	315	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2025-10-25
Silk Lure	4	command and control, delivery	dns, tls, http	4	command and control, delivery	dns, tls, http	2025-10-24
SocGholish	36	command and control	dns, tls, http	1860	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-10-25
TA4903	6	delivery	dns, tls, http	2432	delivery	dns, http, tls	2025-10-24
Tamperedchef	4	installation, delivery	http	4	installation, delivery	http	2025-10-24
TransparentTribe	9	command and control	dns, tls, http	46	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-10-25
XWorm	32	command and control	tcp-pkt	4093	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-10-25
iMonitor EAM CnC	9	command and control	tcp-pkt	9	command and control	tcp-pkt	2025-10-24

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