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: 1413

 

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]: 260
• Updated threat detection(s) [3]: 260

 

Note: a "method" as referenced below, is an individual detection algorithm or signature for a given threat.

 

New Threat(s) Detected

The following detections were added to your Clear NDR (formerly Stamus Security Platform) 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):

 

APT35 (APT)

Iranian-backed group Magic Hound engages in cyber espionage targeting U.S. and Middle Eastern officials and organizations since 2014, likely working with the Islamic Revolutionary Guard Corps through elaborate social engineering tactics.

• Added kill chain phase(s): delivery
• Previously supported kill chain phase(s): command and control, delivery
• MITRE ATT&CK added: T1566
• Previously existing MITRE ATT&CK: T1041, T1071, T1587, T1566, T1665, T1102
• Methods added: 24

 

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: 3

 

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
• Previously existing MITRE ATT&CK: T1041, T1071
• Methods added: 12

 

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
• Methods added: 78

 

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: 1

 

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
• MITRE ATT&CK added: T1189
• Previously existing MITRE ATT&CK: T1071, T1027, T1189
• Methods added: 22

 

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: 120

 

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
APT35	24	delivery	dns, tls, http	1947	command and control, delivery	dns, ftp, http, tcp, tls, udp	2025-07-31
Fake Browser	3	exploitation	dns, tls, http	1730	command and control, delivery, exploitation	dns, http, tls	2025-07-30
Kimsuky	12	actions on objectives, command and control, delivery	http, dns, tls	380	actions on objectives, command and control, delivery	dns, ftp, ftp-data, http, tcp, tls	2025-08-01
Lumma	78	command and control, actions on objectives	dns, tls, http	6588	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-08-02
NetSupport RAT	1	command and control	http	144	actions on objectives, command and control, exploitation, installation	dns, http, tls	2025-07-29
SocGholish	22	command and control	dns, tls, http	1670	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-08-02
XWorm	120	command and control	tcp-pkt	3776	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-08-02

 

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