Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

956 detections

Detects HVNC final payload masquerading as Windows Update Assistant, combining Firefox credential theft strings, hardcoded AV process names, and XOR-encoded C2 host configuration
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects access to Firefox profile database files (cookies.sqlite, places.sqlite, permissions.sqlite) by suspicious processes that are masquerading as legitimate system maintenance or update utilities. This rule specifically targets known masquerading process names (UpdateAssistant.exe, AppUpdateHelper.exe, SysMaintenance.exe) while excluding the legitimate firefox.exe process and its installation directory.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects potential credential harvesting or process memory manipulation against browser processes (Chrome or Edge). The rule monitors for unauthorized debugging activity initiated against browser processes (e.g., using flags like DEBUG_PROCESS or specific API calls) and the access of the App-Bound encryption provider symbol, which is often a target for attackers seeking to decrypt browser-stored secrets.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
203
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
Defender - KQL
2 months ago
003
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects execution of Electron or Node.js processes attempting to export Telegram sessions, specifically targeting execution paths often used for staging or temporary storage (Temp, Roaming, ProgramData, Public folders).
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
103
Detects unauthorized processes (e.g., cmd.exe, powershell.exe, node.exe) accessing sensitive web browser files like 'Login Data' or 'Cookies' in common browser directories. This behavior is indicative of credential theft or data exfiltration attempts.
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Arnold Chan@slaz
Defender - KQL
2 months ago
003
The detection rule identifies an suspicious process named 'msgbox.exe' attempting to interact with browser configuration files ('Secure Preferences') and activity directories ('stomp_ext'), while simultaneously invoking browser processes ('chrome.exe' or 'msedge.exe') with the '--restore-last-session' argument. This behavior is indicative of an adversary attempting to force-load a browser session or hijack browser state, potentially to steal session cookies or credentials.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
101
This rule detects two suspicious patterns: 1) DLL sideloading of 'libcef.dll' by processes like 'ClaudeDesktop.exe' or JetBrains-related tools when executed from non-standard directories like 'Downloads', 'Temp', or 'AppData'. 2) Unauthorized access to common browser credential storage files (e.g., 'Login Data', 'Cookies') by processes other than standard browsers.
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Emiliano Mema@Nosalva
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Detections.ai Community
2 months ago
11017
Detects processes that access sensitive browser credential or cookie files (e.g., Login Data, Cookies) followed by network activity within a 10-minute window, which is a common behavior pattern of information-stealing malware such as Amatera or ACR Stealer.
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Arnold Chan@slaz
Defender - KQL
2 months ago
104
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
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Hunters
2 months ago
000
Detects HVNC final payload masquerading as Windows Update Assistant, combining Firefox credential theft strings, hardcoded AV process names, and XOR-encoded C2 host configuration
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
001
Detects HVNC final payload masquerading as Windows Update Assistant, combining Firefox credential theft strings, hardcoded AV process names, and XOR-encoded C2 host configuration
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
001
Detects access to Firefox profile database files (cookies.sqlite, places.sqlite, permissions.sqlite) by suspicious processes that are masquerading as legitimate system maintenance or update utilities. This rule specifically targets known masquerading process names (UpdateAssistant.exe, AppUpdateHelper.exe, SysMaintenance.exe) while excluding the legitimate firefox.exe process and its installation directory.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
001
Detects unauthorized processes (e.g., cmd.exe, powershell.exe, node.exe) accessing sensitive web browser files like 'Login Data' or 'Cookies' in common browser directories. This behavior is indicative of credential theft or data exfiltration attempts.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
002
Detects execution of Electron or Node.js processes attempting to export Telegram sessions, specifically targeting execution paths often used for staging or temporary storage (Temp, Roaming, ProgramData, Public folders).
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects potential credential harvesting or process memory manipulation against browser processes (Chrome or Edge). The rule monitors for unauthorized debugging activity initiated against browser processes (e.g., using flags like DEBUG_PROCESS or specific API calls) and the access of the App-Bound encryption provider symbol, which is often a target for attackers seeking to decrypt browser-stored secrets.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects potential credential harvesting or process memory manipulation against browser processes (Chrome or Edge). The rule monitors for unauthorized debugging activity initiated against browser processes (e.g., using flags like DEBUG_PROCESS or specific API calls) and the access of the App-Bound encryption provider symbol, which is often a target for attackers seeking to decrypt browser-stored secrets.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects the initialization of PostgreSQL logical replication slots using uncommon or unrecognized output plugins. Attackers may leverage logical replication plugins to exfiltrate data from a database by streaming changes as they occur, which can be an alternative to traditional mass-export techniques.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects the use of shell commands ('bash', 'sh') to interact with potential configuration backup files or files containing sensitive system information (e.g., 'show_running-config.txt', 'show_version.txt'). This behavior is indicative of an adversary staging or accessing configuration data on a compromised system or network device.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
000
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