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: 1356

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 (Generic Keylogger, Venom Spider, DollyWay)
Major changes to detections(s) [2]: 239
Updated threat detection(s) [3]: 282

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:

Generic Keylogger (Data Theft)

Keystroke logging involves recording keys struck on a keyboard, often done covertly, allowing the person monitoring to retrieve data. It can be done through software or hardware.

Generic Keylogger - MITRE - Input Capture: Keylogging |

Total number of detection methods: 4
Kill chain phase(s): command and control, delivery
MITRE ATT&CK: T1041, T1102

Venom Spider (APT)

VENOM SPIDER is a developer of hacking tools including SKID, VenomKit, and Taurus Loader. The adversary, 'badbullzvenom', has been active since 2012 in Russian underground forums, specializing in exploiting vulnerabilities and maintaining access to victim machines.

Venom Spider - Proofpoint | Venom Spider - Arctic wolf |

Total number of detection methods: 39
Kill chain phase(s): command and control

DollyWay (Exploit Kit)

Since 2016, the DollyWay malware operation has compromised over 20,000 WordPress sites globally, evolving to redirect users to malicious sites and distribute harmful payloads like ransomware and banking trojans.

DollyWay - GoDaddy |

Total number of detection methods: 3
Kill chain phase(s): exploitation

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):

APT28 (APT)

APT28, linked to Russia's Main Intelligence Directorate, compromised the Hillary Clinton campaign, DNC, and DCCC in 2016 to interfere with U.S. election. Active since 2004.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery, actions on objectives, exploitation
MITRE ATT&CK added: T1041
Previously existing MITRE ATT&CK: T1041, T1071
Methods added: 1

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, T1036, T1105
Methods added: 3

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: 1

DCRAT (RAT)

DarkCrystal, or dcRAT, is a dangerous Remote Access Trojan that gives hackers control over infected devices, posing significant threats to user safety. RATs can manipulate machines in different ways.

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

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: 9

Gamaredon (APT)

Gamaredon Group, active since 2013, targets individuals linked to the Ukrainian government. Named after a misspelled "Armageddon", the group's activities have been documented in early campaigns.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): actions on objectives, command and control, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1583, T1071
Methods added: 1

Interlock Ransomware (Ransomware)

Interlock ransomware, discovered in 2024, engages in Big Game Hunting and double extortion but doesn't operate as a Ransomware-as-a-Service group. Data Leak Site "Worldwide Secrets Blog" negotiates ransom prices with victims.

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: T1071
Methods added: 2

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: 8

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: 125

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: 3

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

TA399 (APT)

An APT is a sophisticated, long-term cyber-attack carried out by skilled threat actors with significant resources. Unlike short-lived attacks, APTs focus on sustained operation and specific objectives, often sponsored by nation-states or large criminal organizations.

Added kill chain phase(s): command and control, delivery
Previously supported kill chain phase(s): command and control
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1071, T1041
Methods added: 5

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: 63

Zebrocy (Trojan)

Zebrocy is a versatile Trojan used by APT28 since 2015, with variants in multiple programming languages like C++, Delphi, and C#. It is detailed on MITRE.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s): command and control, delivery, actions on objectives
MITRE ATT&CK added: T1041
Previously existing MITRE ATT&CK: T1071
Methods added: 1

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
APT28	1	command and control	http	797	actions on objectives, command and control, delivery, exploitation	dns, http, tcp, tcp-pkt, tls	2025-05-23
ClickFix	3	delivery	dns, tls, http	185	command and control, delivery, exploitation	dns, http, tls	2025-05-20
Command and Control	1	command and control	tls	552	actions on objectives, command and control, delivery, installation	dns, http, icmp, tcp, tcp-pkt, tls	2025-05-22
DCRAT	1	command and control	tls	56	actions on objectives, command and control, installation	dns, http, tcp, tls	2025-05-22
DollyWay	3	exploitation	http	3	exploitation	http	2025-05-23
Fake Browser	9	exploitation	dns, tls, http	1624	command and control, delivery, exploitation	dns, http, tls	2025-05-23
Gamaredon	1	command and control	http	1054	actions on objectives, command and control, delivery	dns, http, tcp-pkt, tls	2025-05-23
Generic Keylogger	1	command and control	http	4	command and control	http	2025-05-23
Interlock Ransomware	2	command and control	http, tcp	4	command and control	http, tcp	2025-05-20
LandUpdate808	8	command and control	dns, tls, http	468	command and control, delivery	dns, http, tls	2025-05-22
Lumma	125	command and control, actions on objectives	dns, tls, http	5896	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-05-23
NetSupport RAT	1	command and control	http	108	actions on objectives, command and control, exploitation, installation	dns, http, tls	2025-05-22
RAT Generic	3	command and control	tcp	273	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2025-05-23
SocGholish	15	command and control	dns, tls, http	1485	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-05-23
TA399	5	command and control, delivery	tls, http	44	command and control, delivery	dns, http, tls	2025-05-22
Venom Spider	39	command and control	dns, tls, http	39	command and control	dns, tls, http	2025-05-23
XWorm	63	command and control	tcp-pkt	3185	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-05-23
Zebrocy	1	delivery	http	61	actions on objectives, command and control, delivery	dns, http, tls	2025-05-23

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