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: 1685

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]: 2 (RevStealer, GoldenGh0stLoader)
Major changes to detections(s) [2]: 171
Updated threat detection(s) [3]: 188

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 Stamus NDR this past week:

RevStealer (Data Theft)

Infostealer is malware that infiltrates systems to steal personal or corporate data like passwords and financial information, which is then sold on the dark web for identity theft and fraud.

RevStealer - Joes | RevStealer - Abusech | RevStealer - Proofpoint |

Total number of detection methods: 12
Kill chain phase(s): command and control, actions on objectives, delivery
MITRE ATT&CK: T1041, T1005

GoldenGh0stLoader (Loader)

Ghost Loader uses complex three-stage delivery methods to steal credentials and generate revenue from Telegram channels and affiliate URL redirects, with updated infrastructure as recent as February 5, 2026.

Total number of detection methods: 5
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: T1189
Previously existing MITRE ATT&CK: T1071, T1027, T1189, T1105, T1102, T1566, T1036
Methods added: 25

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, command and control
Previously supported kill chain phase(s): command and control, installation, delivery, actions on objectives
MITRE ATT&CK added: T1566, T1105, T1189
Previously existing MITRE ATT&CK: T1071, T1041, T1219, T1189, T1105, T1566
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, exploitation, actions on objectives
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1189, T1105, T1071
Methods added: 18

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: 18

MageCart (Data Theft)

FIN6 or Magecart is a cybercrime group that steals payment card data from PoS systems in hospitality and retail, selling it on underground markets for profit.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s): actions on objectives, command and control, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1587, T1071, T1105
Methods added: 1

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

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, delivery, actions on objectives
Previously supported kill chain phase(s): installation, command and control, actions on objectives, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1071, T1041, T1105, T1005, T1573
Methods added: 23

Ransomware Generic (Ransomware)

Ransomware is a type of malware that blocks users from their system or files and demands ransom payment for access. Originally payment was sent via mail, now via cryptocurrency or credit card.

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: T1573
Previously existing MITRE ATT&CK: T1486, T1105, T1071
Methods added: 18

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: 18

Stealer and Exfiltration (Data Theft)

Info stealers gather sensitive data on infected computers to send to attackers, typically targeting online banking, social media, email, and FTP accounts. They use various methods including hooking browsers and keylogging.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): actions on objectives, command and control, installation, delivery, exploitation
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1071, T1005, T1041, T1567, T1095, T1105, T1486, T1587, T1496
Methods added: 1

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: 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: 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	25	delivery, command and control	http, dns, tls	687	command and control, delivery, exploitation, installation	dns, http, tls	2026-06-27
Fake Browser	14	exploitation	dns, tls, http	2404	command and control, delivery, exploitation	dns, http, tls	2026-06-25
Fake Service	9	delivery, command and control	http	205	actions on objectives, command and control, delivery, installation	dns, http, http1, tcp, tls	2026-06-25
GoldenGh0stLoader	5	command and control	dns, tcp, http, tls	5	command and control	dns, tcp, http, tls	2026-06-25
LandUpdate808	18	command and control	dns, tls, http	1075	actions on objectives, command and control, delivery, exploitation	dns, http, tls	2026-06-26
Lumma	18	command and control, actions on objectives	dns, tls, http	8221	actions on objectives, command and control, delivery, installation	dns, http, tls	2026-06-24
MageCart	1	delivery	http	521	actions on objectives, command and control, delivery	dns, http, tls	2026-06-24
NetSupport RAT	1	command and control	http	235	actions on objectives, command and control, exploitation, installation	dns, http, tls	2026-06-26
RAT Generic	23	command and control, delivery, actions on objectives	tcp-pkt, tcp, dns, tls, http	474	actions on objectives, command and control, delivery, installation	dns, http, http1, tcp, tcp-pkt, tls, udp	2026-06-23
Ransomware Generic	18	command and control	dns, tls, http	46	actions on objectives, command and control, delivery	dns, http, http1, tls	2026-06-25
RevStealer	12	command and control, actions on objectives, delivery	dns, tls, http	12	command and control, actions on objectives, delivery	dns, tls, http	2026-06-23
SocGholish	18	command and control	dns, tls, http	2351	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2026-06-27
Stealer and Exfiltration	1	command and control	http1	537	actions on objectives, command and control, delivery, exploitation, installation	dns, ftp, http, http1, smtp, tcp, tcp-pkt, tls	2026-06-23
Trojan Downloader	9	delivery	dns, tls, http	492	actions on objectives, command and control, delivery, installation	dns, http, http1, tcp, tls, udp	2026-06-27
XWorm	16	command and control	tcp-pkt	5293	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2026-06-26

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