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: 1587

 

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 (MoonRise)

• Major changes to detections(s) [2]: 268

• Updated threat detection(s) [3]: 269

 

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:

 

MoonRise (RAT)

Moonrise RAT written in Go language gives remote access to attackers. It extracts sensitive information like login credentials, manipulates processes, and supports remote command execution, posing a significant threat that should be promptly eliminated.

X |

• Total number of detection methods: 1

• 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):

 

Calisto (APT)

Callisto Group is a threat actor targeting military, government, think tanks, and journalists in Europe and South Caucasus to gather intelligence on foreign and security policy in the regions.

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

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

• Methods added: 8

 

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, T1566, T1036, T1105

• Methods added: 4

 

Command and Control (Generic CnC)

Adversaries may use custom command and control protocols to communicate, mimicking or developing protocols on top of standard network stacks, instead of using existing Standard Application Layer Protocols.

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

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

• MITRE ATT&CK added: T1566

• Previously existing MITRE ATT&CK: T1071, T1587, T1573, T1566, T1486, T1496, T1041

• Methods added: 12

 

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: T1566

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

• Methods added: 2

 

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): delivery, actions on objectives, command and control

• 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: 11

 

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: 63

 

PureLogs (Data Theft)

PureLogs malware can have a keylogger module that logs all keyboard inputs, leading to significant damage, especially financial, when a computer is infected with this type of malware.

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

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

• MITRE ATT&CK added: T1005

• Previously existing MITRE ATT&CK: T1071

• Methods added: 7

 

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

• 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, T1573

• Methods added: 18

 

TransferLoader (Loader)

Zscaler ThreatLabz discovered TransferLoader malware, active since February 2025, delivering Morpheus ransomware. Includes downloader, backdoor, and loader, with anti-analysis techniques and code obfuscation.

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

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

• MITRE ATT&CK added: T1071

• Previously existing MITRE ATT&CK: T1567, T1041

• Methods added: 8

 

Trojan Agent (Trojan)

A group of trojans with variable payloads can redirect web traffic, manipulate applications, drop/install malicious programs, and download/run additional malware. Behavior is not exhaustive.

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

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

• MITRE ATT&CK added: T1095

• Previously existing MITRE ATT&CK: T1041, T1071, T1496

• Methods added: 5

 

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: 12

 

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): actions on objectives

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

• Methods added: 1

 

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: 117

 

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
Calisto	8	command and control, delivery	http, dns, tls	335	command and control, delivery	dns, http, tls	2026-02-26
ClickFix	4	delivery	http	297	command and control, delivery, exploitation	dns, http, tls	2026-02-28
Command and Control	12	delivery, command and control	http, dns, tls	642	actions on objectives, command and control, delivery, installation	dns, http, icmp, tcp, tcp-pkt, tls	2026-02-26
Fake Service	2	delivery	http	172	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls	2026-02-26
Kimsuky	11	delivery, actions on objectives, command and control	http, dns, tls	423	actions on objectives, command and control, delivery	dns, ftp, ftp-data, http, tcp, tls	2026-02-24
Lumma	63	command and control, actions on objectives	dns, tls, http	7615	actions on objectives, command and control, delivery, installation	dns, http, tls	2026-02-28
MoonRise	1	command and control	tcp	1	command and control	tcp	2026-02-26
PureLogs	7	command and control, delivery	http	10	command and control, delivery	http	2026-02-26
RAT Generic	18	command and control, delivery	dns, tls, http	403	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2026-02-28
TransferLoader	8	command and control	dns, tls, http	22	command and control	dns, http, tls	2026-02-24
Trojan Agent	5	command and control, delivery	tcp-pkt, tcp, dns, tls, http	619	actions on objectives, command and control, delivery, installation	dns, http, ip, smtp, tcp, tcp-pkt, tcp-stream, tls, udp	2026-02-26
Trojan Downloader	12	delivery	dns, tls, http	441	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls, udp	2026-02-25
Unknown APT	1	actions on objectives	http	2010	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls	2026-02-26
XWorm	117	command and control	tcp-pkt	4674	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2026-02-27

 

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