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: 1473

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]: 0
Major changes to detections(s) [2]: 277
Updated threat detection(s) [3]: 277

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:

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):

Cobalt Strike (Pentest Tools)

Cobalt Strike is a commercial penetration testing tool that simulates advanced threat actor attacks, covering the full range of ATT&CK tactics and integrating with tools like Metasploit and Mimikatz.

Added kill chain phase(s): command and control, delivery, actions on objectives
Previously supported kill chain phase(s): command and control, actions on objectives, exploitation, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1041, T1071, T1001, T1587
Methods added: 9

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: 18

Kimsuky (APT)

Kimsuky, a North Korean threat group since 2013, targets think tanks and nuclear-related entities. Recently expanded to US, Russia, Europe; known for Korea Hydro & Nuclear Power Co. compromise.

Added kill chain phase(s): actions on objectives, command and control, delivery
Previously supported kill chain phase(s): command and control, actions on objectives, delivery
MITRE ATT&CK added: T1071, T1105
Previously existing MITRE ATT&CK: T1041, T1071, T1105
Methods added: 9

LandUpdate808 (Trojan)

Fake update variants like SocGholish, Clear Fake, Smart Ape, and ClickFix are being tracked by a collaboration introducing the LandUpdate808 Fake Update Variant.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): delivery, command and control, actions on objectives
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1189, T1105, T1071
Methods added: 6

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: 9

Molerats (APT)

The politically-motivated threat group Molerats has been active since 2012 targeting victims in the Middle East, Europe, and the US according to reports by MITRE.

Added kill chain phase(s): command and control, delivery
Previously supported kill chain phase(s): command and control, delivery
MITRE ATT&CK added: T1071, T1041
Previously existing MITRE ATT&CK: T1041, T1590, T1071, T1587, T1102
Methods added: 12

Mustang Panda (APT)

Mustang Panda is a China-based cyber threat actor observed since 2017, possibly operating since 2014. It targets government and non-government organizations in multiple countries like the U.S., Germany, and Myanmar.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
Methods added: 24

SideWinder (APT)

Actor targeting Pakistan military, linked to Indian company with unique malware implementations since 2012. Leverages CVE-2017-11882 exploits, deploys Powershell payload in final stages. Low confidence in attribution.

Added kill chain phase(s): delivery, command and control
Previously supported kill chain phase(s): command and control, delivery, actions on objectives, exploitation
MITRE ATT&CK added: T1105, T1041
Previously existing MITRE ATT&CK: T1071, T1041, T1036
Methods added: 2

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: 9

Unknown APT (APT)

Sophisticated adversary with expertise and resources uses multiple attack vectors to establish presence in organizations' IT infrastructure, exfiltrate information, undermine missions, and persistently adapt to defenders.

Added kill chain phase(s): command and control, delivery
Previously supported kill chain phase(s): command and control, delivery
MITRE ATT&CK added: T1041, T1566
Previously existing MITRE ATT&CK: T1041, T1071, T1001, T1566, T1102
Methods added: 176

ValleyRat (RAT)

Remote Access Trojans mimic keyloggers but also allow unauthorized remote access to victim PCs. Attackers can monitor behavior, change settings, copy files, and access connected systems for criminal activities.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control
Methods added: 3

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
Cobalt Strike	9	command and control, delivery, actions on objectives	dns, tls, http	593	actions on objectives, command and control, delivery, exploitation	dns, http, smb, tcp, tls, udp	2025-10-17
Fake Browser	18	exploitation	dns, tls, http	1763	command and control, delivery, exploitation	dns, http, tls	2025-10-18
Kimsuky	9	actions on objectives, command and control, delivery	http, dns, tls	409	actions on objectives, command and control, delivery	dns, ftp, ftp-data, http, tcp, tls	2025-10-15
LandUpdate808	6	command and control	dns, tls, http	613	actions on objectives, command and control, delivery	dns, http, tls	2025-10-18
Lumma	9	command and control, actions on objectives	dns, tls, http	6895	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-10-14
Molerats	12	command and control, delivery	dns, tls, http	343	command and control, delivery	dns, http, tcp, tls	2025-10-18
Mustang Panda	24	command and control	dns, tls, http	246	command and control, delivery	dns, http, tcp, tls	2025-10-16
SideWinder	2	delivery, command and control	http	528	actions on objectives, command and control, delivery, exploitation	dns, http, tls	2025-10-18
SocGholish	9	command and control	dns, tls, http	1824	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-10-17
Unknown APT	176	command and control, delivery	dns, tls, http	1402	command and control, delivery	dns, http, tcp, tls	2025-10-16
ValleyRat	3	command and control	dns, tls, http	11	command and control	dns, http, tcp-pkt, tls	2025-10-18

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