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: 1612

 

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]: 1 (DarkSword)

• Major changes to detections(s) [2]: 225

• Updated threat detection(s) [3]: 226

 

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:

 

DarkSword (Data Theft)

 

DarkSword is an exploit chain and infostealer in JavaScript that leverages multiple vulnerabilities on iOS devices to access and exfiltrate sensitive information, orchestrated through various malicious modules.

• Total number of detection methods: 1

• Kill chain phase(s): command and control

• MITRE ATT&CK: T1041

 

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, command and control

• Previously supported kill chain phase(s): exploitation, delivery, command and control, installation

• MITRE ATT&CK added: T1105, T1071

• Previously existing MITRE ATT&CK: T1071, T1027, T1189, T1102, T1566, T1036, T1105

• Methods added: 16

 

ConnectWise (Trojan)

Trojans are malicious software disguised as legitimate programs used by cyber-thieves to gain access to users' systems. They can spy on users, steal data, and provide backdoor access to the system.

• Added kill chain phase(s): installation

• Previously supported kill chain phase(s): delivery, installation, command and control

• Methods added: 1

 

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: 14

 

Fake Service (Phishing)

Phishing involves scammers posing as familiar companies to obtain personal information. Consumers should avoid responding to suspicious emails requesting personal or financial details to prevent falling victim to these scams.

• Added kill chain phase(s): delivery

• Previously supported kill chain phase(s): command and control, installation, delivery, actions on objectives

• MITRE ATT&CK added: T1189

• Previously existing MITRE ATT&CK: T1071, T1041, T1219, T1105, T1566

• Methods added: 14

 

Generic Loader (Loader)

Loaders are evolving remote access Trojans, offering user-friendly interfaces, self-healing capabilities, and a platform for botmasters to sell bots. They are typically lightweight to evade security measures.

• 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, T1496, T1566, T1105

• Methods added: 1

 

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

• MITRE ATT&CK added: T1189

• Previously existing MITRE ATT&CK: T1189, T1105, T1071

• Methods added: 3

 

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: 3

 

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

 

PlugX (RAT)

PlugX is a RAT with modular plugins used by several threat groups for remote access. More information available on MITRE's website.

• Added kill chain phase(s): command and control

• Previously supported kill chain phase(s): command and control, delivery

• MITRE ATT&CK added: T1071

• Previously existing MITRE ATT&CK: T1041, T1071

• 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: 15

 

TA455 (APT)

Meta took action against a hacking group from Iran that targeted various industries worldwide. The group's tactics resembled another threat actor, but with different targets, infrastructure, and malware.

• Added kill chain phase(s): command and control

• Previously supported kill chain phase(s): command and control, installation, actions on objectives

• MITRE ATT&CK added: T1071

• Previously existing MITRE ATT&CK: T1071, T1583, T1102, T1041

• Methods added: 21

 

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: 9

 

Trojan Downloader (Downloader)

Trojan downloaders are malicious software that look legitimate, but can harm your computer by downloading files, often without user consent, to steal, damage, or disrupt your devices.

• Added kill chain phase(s): delivery

• Previously supported kill chain phase(s): command and control, delivery, actions on objectives, installation

• Methods added: 6

 

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): delivery

• Previously supported kill chain phase(s): command and control, delivery, actions on objectives

• MITRE ATT&CK added: T1566

• Previously existing MITRE ATT&CK: T1041, T1071, T1001, T1566, T1102, T1105

• Methods added: 72

 

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: 16

 

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
ClickFix	16	delivery, command and control	http, tls	441	command and control, delivery, exploitation, installation	dns, http, tls	2026-03-26
ConnectWise	1	installation	http	17	command and control, delivery, installation	dns, http, tls	2026-03-25
DarkSword	1	command and control	http	1	command and control	http	2026-03-26
Fake Browser	14	exploitation	dns, tls, http	1959	command and control, delivery, exploitation	dns, http, tls	2026-03-28
Fake Service	14	delivery	http, dns, tls	191	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls	2026-03-26
Generic Loader	1	command and control	tcp-pkt	147	actions on objectives, command and control, delivery	dns, http, tcp, tcp-pkt, tls	2026-03-26
LandUpdate808	3	command and control	dns, tls, http	889	command and control, delivery	dns, http, tls	2026-03-26
Lumma	33	command and control, actions on objectives	dns, tls, http	7810	actions on objectives, command and control, delivery, installation	dns, http, tls	2026-03-28
NetSupport RAT	1	command and control	http	206	actions on objectives, command and control, exploitation, installation	dns, http, tls	2026-03-24
PlugX	3	command and control	http	134	command and control, delivery	dns, http, tcp, tcp-pkt, tls, udp	2026-03-26
SocGholish	15	command and control	dns, tls, http	2159	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2026-03-28
TA455	21	command and control	dns, tls, http	751	actions on objectives, command and control, installation	dns, http, tls	2026-03-25
TA4903	9	delivery	dns, tls, http	2480	delivery	dns, http, tls	2026-03-27
Trojan Downloader	6	delivery	dns, tls, http	453	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls, udp	2026-03-25
Unknown APT	72	delivery	dns, tls, http	2005	actions on objectives, command and control, delivery	dns, http, tcp, tls	2026-03-26
XWorm	16	command and control	tcp-pkt	4848	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2026-03-28

 

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