Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
15,636 detections
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Detects cmd.exe launching curl.exe with TLS verification disabled, redirect following, an output file, and forced hostname-to-IP resolution, or the PowerShell Invoke-WebRequest with a certificate-check bypass switch, often associated with malicious trojan droppers.
Detects execution of a specific PowerShell remediation script using execution policy bypass, or generic PowerShell activity importing certificates into the LocalMachine\Disallowed store outside of known administrator processes and accounts.
Detects AnyDesk being silently installed with the --install and --silent flags or having an unattended-access password configured via the --set-password and _unattended_access parameters, typically piped via stdin from a batch dropper using cmd.exe.
Detects post-exploitation activity targeting PaperCut servers, including shells spawned by the PaperCut Java process or the creation of malicious files (such as .class files in lib/ or .txt webshells in custom/web/) by the Java application.
Detects behavior where PowerShell or pwsh executes msiexec.exe to silently install an MSI file located in a temporary directory with a GUID-prefixed filename, optionally following a recent download from a remote URL.
Detects PHP SAPI processes accessing /proc/self/mem (or equivalent memory mapping) and subsequently spawning a Unix shell, which is characteristic of web shell activity or exploitation of PHP memory corruption/injection vulnerabilities like zif_system.
Detects command-line execution of script interpreters (PowerShell, CMD, MSHTA) spawned via Windows Explorer containing download primitives and URLs, followed by immediate external network connections.
Detects Microsoft Word (winword.exe) spawning the Windows command shell (cmd.exe) to execute batch scripts (.bat or .cmd files). This behavior is commonly associated with malicious document macros attempting to drop and execute secondary payloads, excluding common system paths to reduce false positives.
Detects PowerShell processes combining local loopback listener terms (such as HttpListener or TcpListener) and authentication or web request cmdlets referencing 127.0.0.1 or localhost, correlated with local network loopback connections.
Detects node or agent-initiated npm installation commands (such as npm install or npm i) executed within 24 hours of creating or modifying a developer assistant instruction file (such as AGENTS.md, CLAUDE.md, .cursorrules) in common user directories like Downloads, Desktop, or Temp.
Detects instances where web server processes or PHP interpreters (apache2, httpd, php-fpm, php) spawn a shell process (sh, bash, dash). This behavior is often indicative of post-exploitation activity such as remote code execution (RCE) via PHP session upload progress or web shell activity.
Detects instances where the Claude Code AI assistant CLI or related node processes spawn command-line shells (such as cmd, powershell, bash, sh, zsh), followed by system firewall rule modifications on the same device within a 4-hour window.
Detects PaperCut server processes (such as pc-app.exe, pc-server.exe, or Java running PaperCut) spawning command shells or utility binaries associated with credential dumping, internal reconnaissance, or pivoting.
Detects a sequence where PowerShell downloads an .msi file from Azure Blob storage (blob.core.windows.net), followed by msiexec.exe spawning PowerShell on the same device within 30 minutes.
Detects DeElevate64.exe within the Stardock Smart DeElevation Tool directory loading I++u.dll, a known malicious loader dependency associated with patched DeElevator64.dll usage.
Detects access to Chrome or Chromium-based browser Local State files (which contain encrypted keys) by a non-browser process that correlates temporally with a PowerShell process exhibiting ClickFix-style staging characteristics (hidden window, bypass execution policy, and containing a URL).
Detects WinRAR or 7-Zip extracting an archive with a hard-coded password supplied via command line from a cmd.exe batch parent, using switch patterns associated with the RareWolf AnyDesk dropper.
Detects when a Java or JavaW process spawns a Unix shell (bash, sh, dash) with command-line arguments indicative of a reverse shell utilizing /dev/tcp and interactive shell flags.
Detects web server processes (such as apache2, httpd, nginx, php-fpm) spawning a shell or curl process that performs LDAP queries using curl against URLs. This activity is indicative of Remote Code Execution (RCE) vulnerabilities being exploited against web applications to perform internal reconnaissance or LDAP enumeration.
Detects Microsoft Edge (msedge.exe) spawned by command shells or script hosts with hidden or headless window parameters, or communicating with webhook.site, which is commonly indicative of malicious browser automation or exfiltration.
Detects instances where the Apache web server spawns a shell process (sh, dash, bash) which subsequently executes common discovery or callback utilities (such as id, curl, wget, php, hostname, or uname), typically indicative of web application exploitation or remote code execution.
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