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: 1261

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 (Data Exfiltration Toolkit (DET), ICMP Tunneling)
• Major changes to detections(s) [2]: 450
• Updated threat detection(s) [3]: 453

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 (formerly Stamus Security Platform) this past week:

Data Exfiltration Toolkit (DET) (Data Theft)

DET is a proof of concept toolkit for Data Exfiltration using multiple channels simultaneously. It tests network monitoring and DLP solutions against various exfiltration techniques.

• Total number of detection methods: 1
• Kill chain phase(s): actions on objectives

ICMP Tunneling (Covert Channel)

ICMP is a critical network service used for connectivity verification, but attackers can inject malicious traffic into ICMP packets, potentially compromising network security.

• Total number of detection methods: 2
• Kill chain phase(s): actions on objectives

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):

APT38 (APT)

APT38 is a financially motivated threat group from North Korea targeting banks. Some organizations use the name Lazarus Group to encompass various North Korean activities like APT38.

• 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: T1041, T1071, T1587
• Methods added: 3

Backdoor (Trojan)

Backdoors give malicious users control over infected computers, similar to administration systems. They can do multiple tasks on the computer and be used to form botnets or spread through networks.

• Added kill chain phase(s): command and control, actions on objectives
• Previously supported kill chain phase(s): command and control, actions on objectives, installation, delivery
• MITRE ATT&CK added: T1071
• Previously existing MITRE ATT&CK: T1041, T1496
• Methods added: 6

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): command and control
• Previously supported kill chain phase(s): command and control, actions on objectives, delivery, installation
• Methods added: 6

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: 18

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, T1566
• Methods added: 1

Hqwar (Data Theft)

Trojan-Banker programs steal bank account information and other data, then transfer it to malicious users. Stolen data can be transmitted through email, FTP, the web, or other methods.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): command and control, actions on objectives
• MITRE ATT&CK added: T1071
• Previously existing MITRE ATT&CK: T1041
• Methods added: 3

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: 15

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: 203

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: 2

Powershell (Lateral Movement)

Adversaries can abuse PowerShell for execution, discovery, and code running. Examples include Start-Process and Invoke-Command cmdlets, requiring administrator permissions for remote connections.

• Added kill chain phase(s): delivery
• Previously supported kill chain phase(s): actions on objectives, command and control, delivery
• MITRE ATT&CK added: T1027
• Previously existing MITRE ATT&CK: T1071, T1041, T1027
• 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
• MITRE ATT&CK added: T1189
• Previously existing MITRE ATT&CK: T1071, T1027, T1189
• Methods added: 12

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, actions on objectives
• Previously supported kill chain phase(s): actions on objectives, command and control, installation, delivery, exploitation
• MITRE ATT&CK added: T1041
• Previously existing MITRE ATT&CK: T1071, T1005, T1041, T1486, T1587, T1496
• Methods added: 3

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

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: 48

TrojanSpy-Android (Data Theft)

Malicious programs in the Trojan-Spy.AndroidOS.Agent family covertly send data from infected Android devices to criminals.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): command and control, actions on objectives, delivery, 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: 118

Other Threat Detection Update(s)

The following threat detection(s) were improved this past week with new or updated threat methods.