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: 1229

 

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]: 3 (Lateral Scanning, Earth Kasha, BaydenRAT)
• Major changes to detections(s) [2]: 251
• Updated threat detection(s) [3]: 263

 

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 - Enterprise (formerly Stamus Security Platform) this past week:

 

Earth Kasha (APT)

 

Earth Kasha utilizes various TTPs to exploit vulnerabilities in enterprise products such as Array AG, Proself, and FortiOS/FortiProxy, deploying backdoors like Cobalt Strike and NOOPDOOR for network persistence.

• Total number of detection methods: 9
• Kill chain phase(s): command and control
• MITRE ATT&CK: T1048

 

BaydenRAT (RAT)

Remote Access Trojans are programs that allow covert surveillance or unauthorized access to a victim PC. They collect keystrokes, passwords, screenshots, and more, providing attackers with remote control of the victim machine.

• Total number of detection methods: 3
• Kill chain phase(s): command and control

 

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):

 

Ailurophile (Data Theft)

The stealer is written in PHP, packaged into an executable with 'ExeOutput', and virtualized with 'BoxedApp' for victims who cannot execute PHP code.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): actions on objectives, command and control
• MITRE ATT&CK added: T1041
• Previously existing MITRE ATT&CK: T1567
• Methods added: 3

 

Emmenhtal Loader (Loader)

A shortcut file triggers a chain of events, leading to the execution of malicious PowerShell scripts, including the downloading and running of Infostealers like CryptBot or Lumma stealer.

• Added kill chain phase(s): delivery, command and control
• Previously supported kill chain phase(s): command and control, delivery
• Methods added: 11

 

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: 21

 

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
• 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
• Methods added: 75

 

Malicious DGA Domain (Generic CnC)

Malicious domains are used by threat actors for malware spreading and phishing. C2 servers are established worldwide to evade detection. DGA generates domain names for command and control, challenging security professionals. Stamus Networks offers specialized detection methods.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): command and control
• Methods added: 4

 

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
• Previously supported kill chain phase(s): installation, command and control, actions on objectives, delivery
• MITRE ATT&CK added: T1573
• Previously existing MITRE ATT&CK: T1071, T1041, T1573
• 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: 15

 

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: 6

 

TA582 (APT)

An APT is a stealthy threat actor, often nation state or state-sponsored, gaining unauthorized access and remaining undetected in a network for political or economic reasons, targeting various sectors.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): command and control
• Methods added: 34

 

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: 61

 

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
Ailurophile	3	command and control	dns, tls, http	10	actions on objectives, command and control	dns, http, tls	2024-12-10
BaydenRAT	3	command and control	tcp	3	command and control	tcp	2024-12-09
Earth Kasha	9	command and control	dns, tls, http	9	command and control	dns, tls, http	2024-12-09
Emmenhtal Loader	11	delivery, command and control	http, dns, tls	91	command and control, delivery	dns, http, tls	2024-12-12
Fake Browser	21	exploitation	dns, tls, http	1237	command and control, delivery, exploitation	dns, http, tls	2024-12-14
LandUpdate808	18	command and control	dns, tls, http	98	command and control, delivery	dns, http, tls	2024-12-14
Lumma	75	command and control, actions on objectives	dns, tls, http	3112	actions on objectives, command and control, delivery, installation	dns, http, tls	2024-12-14
Malicious DGA Domain	4	command and control	http, tls	122	command and control	http, tls	2024-12-11
NetSupport RAT	1	command and control	http	65	actions on objectives, command and control, exploitation, installation	dns, http, tls	2024-12-10
RAT Generic	2	command and control	tcp	187	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2024-12-11
SocGholish	15	command and control	dns, tls, http	1188	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2024-12-14
TA4903	6	delivery	dns, tls, http	1222	delivery	dns, http, tls	2024-12-10
TA582	34	command and control	dns, http, tls	544	command and control	dns, http, tls	2024-12-14
XWorm	61	command and control	tcp-pkt	2019	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2024-12-11

 

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