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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,099 downloads4,374 copies51 likes26,083 views

7,555 detections

Detects parent process ID (PPID) spoofing associated with RMMCRAT and other HVNC malware, where an injected process (e.g., smartscreen.exe) spawns child processes while spoofing explorer.exe as the parent. The rule monitors for a mismatch between the reported parent (explorer.exe) and the actual creator (smartscreen.exe) and focuses on burst activity of common shell and browser processes.
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Arnold Chan@slaz
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Hunters
1 month ago
003
Detects UNC6240 PSEMHUB.war web shell/tunnel/trojanized installer artifacts by distinctive content markers (x.jsp, u.jsp, tunnel.jsp/jspx, Ple64.exe)
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects UNC6240 PSEMHUB.war web shell/tunnel/trojanized installer artifacts by distinctive content markers (x.jsp, u.jsp, tunnel.jsp/jspx, Ple64.exe)
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects network activity (TCP, DNS, TLS, HTTP) associated with the UNC6240 threat actor's infrastructure, specifically targeting communications with known malicious IP addresses and domains used in a campaign leveraging PeopleSoft-related lures.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects established, bidirectional TCP connections between internal hosts and known infrastructure associated with the SIDEEYE backdoor on specific control and data ports (3333 and 3334).
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Arnold Chan@slaz
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Hunters
1 month ago
001
This rule detects the execution of the MeshAgent remote administration tool from a temporary directory followed by a network connection to known malicious infrastructure within a 15-minute window. This behavior is indicative of unauthorized remote access setup or C2 activity using a legitimate remote management utility.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects the execution of the 'fanout.sh' utility from the /tmp directory, which subsequently spawns 'sshpass' child processes to perform rapid, non-interactive SSH authentication attempts ('StrictHostKeyChecking=no') against multiple internal hosts within a 10-minute window. This behavior is indicative of automated lateral movement, specifically observed by threat actor UNC6240.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
This rule detects activity involving known malicious indicators of compromise (IOCs), including specific IP addresses, domains, and file hashes. It monitors network connections, file system activity, process execution, and email attachments, filtering out common security tools to reduce noise.
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Arnold Chan@slaz
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Hunters
1 month ago
000
This rule detects activity involving known malicious indicators of compromise (IOCs), including specific IP addresses, domains, and file hashes. It monitors network connections, file system activity, process execution, and email attachments, filtering out common security tools to reduce noise.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
1 month ago
000
This rule detects activity involving known malicious indicators of compromise (IOCs), including specific IP addresses, domains, and file hashes. It monitors network connections, file system activity, process execution, and email attachments, filtering out common security tools to reduce noise.
avatar
Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
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