avatar

Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,099 downloads4,317 copies51 likes25,758 views

7,544 detections

Detects HTTP, TLS, DNS, and TCP communication with known AhsayCBS campaign infrastructure and Alibaba OSS storage buckets used for payload delivery.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
25 days ago
003
Detects an unauthenticated remote code execution attempt against AhsayCBS via the UpdateReceivers.do endpoint using the checkSysPwd parameter, associated with CVE-2026-105133 and CVE-2026-105134.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
25 days ago
003
Detects an unauthenticated remote code execution attempt against AhsayCBS via the UpdateReceivers.do endpoint using the checkSysPwd parameter, associated with CVE-2026-105133 and CVE-2026-105134.
avatar
Arnold Chan@slaz
avatar
Hunters
25 days ago
003
Detects endpoint and network activity matching known Indicators of Compromise (IOCs) associated with BPFDoor, AVERAT, and Rekoobe backdoors based on Rapid7 research. The query checks for specific file hashes, IP addresses, and domain names across process, file, image load, network, and DNS events.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
24 days ago
002
Detects endpoint and network activity matching known Indicators of Compromise (IOCs) associated with BPFDoor, AVERAT, and Rekoobe backdoors based on Rapid7 research. The query checks for specific file hashes, IP addresses, and domain names across process, file, image load, network, and DNS events.
avatar
Arnold Chan@slaz
Defender - KQL
24 days ago
002
Detects endpoint and network activity matching known Indicators of Compromise (IOCs) associated with BPFDoor, AVERAT, and Rekoobe backdoors based on Rapid7 research. The query checks for specific file hashes, IP addresses, and domain names across process, file, image load, network, and DNS events.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
24 days ago
002
This rule monitors endpoint telemetry for indicators of compromise (IOCs) associated with known malicious activity. It checks for file creation, process execution, and network connections that match a defined list of malicious file hashes (SHA256, SHA1, MD5), C2 IP addresses, and malicious domains or URL patterns.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
28 days ago
106
Detects the first-ever observed network connection from a device to WhatsApp Web or Telegram Web within a 30-day lookback period. This behavior is used to identify potentially unauthorized companion-device linking to a user's messenger account, which could indicate credential theft or unauthorized access.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
1 month ago
3012
IOC sweep for ARTEX campaign indicators: C2 host, nine proxy IPs, xcai.pro and its subdomains, and the CLAUDE.md URL across Defender, CEF/firewall, DNS and Entra sign-in telemetry. Domains match on exact host or subdomain only, connection types are limited to real connection events, and sign-ins are limited to successes and credential failures.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
26 days ago
003
Detects clusters of high-volume external source IPs from multiple countries sweeping the same financial web services within an hour.
avatar
Arnold Chan@slaz
Defender - KQL
26 days ago
003
Page 33 of 755