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: 1506

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 (Aura Stealer, SilentSync RAT)
Major changes to detections(s) [2]: 162
Updated threat detection(s) [3]: 198

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:

Aura Stealer (Data Theft)

In July 2025, threat actor AuraCorp launched Aura Stealer as a Malware-as-a-Service program targeting credentials from various sources, including cryptocurrency wallets, using AES-256 encryption for communications and evasion tactics.

Joes |

Total number of detection methods: 32
Kill chain phase(s): command and control, actions on objectives
MITRE ATT&CK: T1071

SilentSync RAT (RAT)

ThreatLabz found malicious Python packages sisaws and secmeasure, delivering RAT named SilentSync. Sisaws uses typosquatting for SISA API in Argentina. Secmeasure, by same author, also delivers RAT from Pastebin.

PCRisk |

Total number of detection methods: 4
Kill chain phase(s): command and control, delivery

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):

ACR Stealer (Data Theft)

ACR Stealer is a Malware-as-a-Service offered by threat actor SheldIO on Russian cybercrime forums since March 2024, possibly related to a previous private stealer program.

Added kill chain phase(s): delivery, 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: T1071, T1041
Methods added: 2

BPFDoor (Backdoor)

BPFDoor is a passive backdoor used by a China-based threat actor, supporting TCP, UDP, and ICMP protocols for C2 communication, providing the actor with various interaction methods with the implant.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s):
MITRE ATT&CK added: T1041
Methods added: 13

Botnet Generic (Botnet)

A botnet is a network of compromised devices controlled by a central server to carry out cyber attacks, steal data, send spam, and grant unauthorized access to devices.

Added kill chain phase(s): actions on objectives
Previously supported kill chain phase(s): command and control, actions on objectives, delivery
Methods added: 1

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, actions on objectives
Previously supported kill chain phase(s): command and control, actions on objectives, delivery, installation
MITRE ATT&CK added: T1041, T1071
Previously existing MITRE ATT&CK: T1071, T1587, T1573, T1566, T1486, T1496, T1041
Methods added: 4

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: 3

Generic TDS (Phishing)

Traffic Direction Systems (TDS) are tools used by threat actors to control internet traffic, redirecting it to malicious sites. TDS is often used with malware for phishing, distributing payloads, and ransomware attacks.

Added kill chain phase(s): command and control, delivery
Previously supported kill chain phase(s): exploitation
MITRE ATT&CK added: T1189
Methods added: 4

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, actions on objectives
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1189, T1105, T1071
Methods added: 6

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: 15

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: 51

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): actions on objectives, delivery, command and control
Previously supported kill chain phase(s): actions on objectives, command and control, delivery, installation
MITRE ATT&CK added: T1041
Previously existing MITRE ATT&CK: T1071, T1027, T1041, T1105
Methods added: 6

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: 1

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: 6

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): actions on objectives, command and control
Previously supported kill chain phase(s): actions on objectives, command and control, installation, delivery, exploitation
MITRE ATT&CK added: T1071, T1005
Previously existing MITRE ATT&CK: T1071, T1005, T1041, T1567, T1486, T1587, T1496
Methods added: 21

TA2727 (APT)

Cybercriminal group TA2727 collaborates with others for financial gain, purchasing online traffic to disseminate malware. Proofpoint identified them in an attack campaign delivering malicious payloads via compromised websites in North America.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control
Methods added: 3

Turla (APT)

Russian-based threat group Turla has targeted victims in 45+ countries since 2004, across various industries. They conduct watering hole and spearphishing campaigns, mainly targeting Windows machines but also macOS and Linux.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
Methods added: 6

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: 20

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
ACR Stealer	2	delivery, command and control	http	79	actions on objectives, command and control, delivery	dns, http, tls	2025-11-25
Aura Stealer	32	command and control, actions on objectives	dns, tls, http	32	command and control, actions on objectives	dns, tls, http	2025-11-26
BPFDoor	13	command and control	udp, icmp, tcp	13	command and control	icmp, tcp, udp	2025-11-27
Botnet Generic	1	actions on objectives	http	38	actions on objectives, command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-11-27
Command and Control	4	command and control, actions on objectives	http	630	actions on objectives, command and control, delivery, installation	dns, http, icmp, tcp, tcp-pkt, tls	2025-11-27
Fake Browser	3	exploitation	dns, tls, http	1808	command and control, delivery, exploitation	dns, http, tls	2025-11-25
Generic TDS	4	command and control, delivery	http, dns, tls	5	command and control, delivery, exploitation	dns, http, tls	2025-11-26
LandUpdate808	6	command and control	dns, tls, http	673	actions on objectives, command and control, delivery	dns, http, tls	2025-11-28
Lumma	15	command and control, actions on objectives	dns, tls, http	6967	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-11-28
Malicious DGA Domain	51	command and control	http, tls	262	command and control	http, tls	2025-11-28
Powershell	6	actions on objectives, delivery, command and control	http	65	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls	2025-11-26
RAT Generic	1	command and control	tcp	323	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2025-11-28
SilentSync RAT	4	command and control, delivery	http	4	command and control, delivery	http	2025-11-26
SocGholish	6	command and control	dns, tls, http	1944	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-11-25
Stealer and Exfiltration	21	actions on objectives, command and control	http, dns, tls	500	actions on objectives, command and control, delivery, exploitation, installation	dns, ftp, http, smtp, tcp, tcp-pkt, tls	2025-11-27
TA2727	3	command and control	dns, tls, http	15	command and control	dns, http, tls	2025-11-25
Turla	6	command and control	tcp-pkt	79	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-11-27
XWorm	20	command and control	tcp-pkt	4211	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-11-25

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