Detectors

Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.

255 detectors match the current filters.

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Type Name Severity Module Data source / event ATT&CK
BIOC Manipulation of Windows Event Log auto-backup via Registry This key enables/disables the automatic backups of event logs when they are full. Informational Platform Analytics Registry Defense Evasion
BIOC Manipulation of Winlogon 'Notify' autostart Registry key Since Winlogon handles the Secure Attention Sequence (SAS) (Ctrl+Alt+Del), notify subkeys found at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify are used to notify event handles when SAS happens and load a DLL. This DLL can be edited to launch whenever such a SAS event occurs. Informational Platform Analytics Registry Persistence
BIOC Microsoft HTML Application Host spawns from CMD or PowerShell Microsoft HTML Application Host is a program whose source code consists of HTML, Dynamic HTML and a few scripting languages compatible with Internet Explorer such as VBScript or JScript. It does not typically spawn from PowerShell or CMD. Informational Platform Analytics Process execution Defense Evasion
BIOC Microsoft HTML Application Host spawns from Explorer.exe Mshta allows execution of .hta files, an attacker can use mshta to execute malicious hta files on the victim's host. Informational Platform Analytics Process execution Defense Evasion
BIOC Microsoft Office executes an unsigned process in a suspicious directory Microsoft Office executed an unsigned process in a suspicious directory. This behavior is common with malicious macros. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office process spawns a commonly abused process Common weaponized office document behavior. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office process spawns an unsigned process Common weaponized office document behavior. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office spawns curl/wget on a macOS device Microsoft Office Word/Excel/PowerPoint/Outlook spawn wget/curl on a macOS device. Informational Platform Analytics Process execution Exfiltration
BIOC Modification of default Windows startup path via Registry An attacker may modify the startup path to the location of the malware. Informational Platform Analytics Registry Persistence
BIOC Modification of systemd service files An attacker may create or modify systemd service unit files to establish persistence between reboots. Informational Platform Analytics File Persistence
BIOC Modification of the Winlogon\Shell Registry key Malware may modify the Winlogon\Shell Registry value to load itself instead of explorer.exe, which is the default system shell. Informational Platform Analytics Registry Persistence
BIOC Modification of Windows boot configuration using bcdedit.exe BCDEdit is a Microsoft Windows utility that can modify boot parameters. It is usually used as part of an attack to prevent repair of the affected system by disabling booting in recovery mode. It can also be used to stop Windows' Patchguard from objecting to the unsigned and insecure nature of a driver being loaded. Informational Platform Analytics Process execution Defense Evasion, Impact
BIOC Modifying ELF file capabilities via setcap An attacker may attempt to gain privileges by setting the capabilities of a file. Informational Platform Analytics Process execution Privilege Escalation
BIOC Mounted NFS share discovery Attackers may use the showmount command to list mount Network File Sharing shares. Informational Platform Analytics Process execution Discovery
BIOC MSBuild execution Attackers may use MSBuild.exe to proxy execution of code through a trusted Windows utility. Informational Platform Analytics Process execution Defense Evasion
BIOC Netcat shell via named pipe Attackers may create a Netcat shell using a named pipe to remotely access the endpoint. Informational Platform Analytics Process execution Execution
BIOC Netrc file enumeration Enumeration commands such as test and cat were executed on .netrc file paths that contain credentials. Informational Platform Analytics Process execution Credential Access
BIOC Netsh.exe modifies allowed firewall port/program lists Malware will often modify local firewall settings to permit untrusted software to communicate with the Internet for C2. Check for malicious use. Informational Platform Analytics Process execution Defense Evasion
BIOC Network Packet Capture: tshark/tcpdump Network packet capture using tshark\tcpdump utility. Informational Platform Analytics Process execution Discovery
BIOC Network scanning tool executed This rule looks for the string nmap in the command line, which indicates that the nmap scanning tool is used to scan a network or a machine. Informational Platform Analytics Process execution Discovery
BIOC New certificate added to the trusted root store Untrusted certificates could be used to install untrusted drivers and malicious code. Informational Platform Analytics Process execution Defense Evasion
BIOC New entry added to startup related Registry keys by unsigned process Entries added to the "Run Keys" in the Registry or the startup folder will cause the program to be executed when the user logs in. The program will be executed in the context of the user and will have his permissions level. Informational Platform Analytics Registry Persistence
BIOC New service created via command line Attackers may leverage services to gain persistence on an endpoint. Informational Platform Analytics Process execution Persistence
BIOC Non-browser process downloads content from GitHub Check for possible attempts to use GitHub as a malicious payload deployment mechanism. This technique is known to be used frequently by threat actors to serve malicious scripts/payloads. Informational Platform Analytics Network Command and Control
BIOC Office document embeds a .LNK file An Office process spawned a process with an argument indicating that the document contains an embedded .LNK file. Informational Platform Analytics Process execution Initial Access
BIOC Office process spawns verclsid.exe A Microsoft Office process launching verclsid.exe may be a sign of phishing. Informational Platform Analytics Process execution Initial Access
BIOC Office process writes an executable file to disk An executable file was written by a Microsoft Office application to disk. Informational Platform Analytics File Execution
BIOC Outlook creates an executable file on disk Common weaponized Office document behavior, as Outlook should not create binary files at all. Informational Platform Analytics File Initial Access
BIOC Password complexity enumeration Attackers may read system files containing password complexity requirements. Informational Platform Analytics Process execution Discovery
BIOC Password policy discovery via command-line tool Attackers may use chage to list the password policy and the user's last access time. Informational Platform Analytics Process execution Discovery
BIOC Password-related Mozilla files were read by a non-Mozilla process Adversaries may acquire credentials from web browsers by reading files specific to the target browser. Informational Platform Analytics File Credential Access
BIOC Permission groups discovery via ldapsearch Attackers may use the ldapsearch command-line tool to gather information about domain groups and their permissions. Informational Platform Analytics Process execution Discovery
BIOC Permissive file privileges were granted Setting readable, writable, and executable permissions for all users may pose a major security risk. Informational Platform Analytics Process execution Defense Evasion
BIOC Persistence through service registration An attacker may add or modify system services to persist on a host. Informational Platform Analytics File Persistence
BIOC Persistence using bashrc files Possible persistency using shell (bash\csh) profile files. Commands in ~/.bashrc are executed on every new shell execution. Informational Platform Analytics File Persistence
BIOC Persistence using cron jobs Cron jobs are tasks to be executed sometime in the future, and could be used to persist malware. Informational Platform Analytics File Persistence
BIOC Persistence via Registry screensaver key change Attackers may install their malware persistently by modifying the value of the screensaver Registry key. Informational Platform Analytics Registry Persistence
BIOC Ping executed with loopback address This seemingly strange "wait" mechanism is often used by malware to stall command execution. Informational Platform Analytics Process execution Defense Evasion
BIOC Ping to a known external IP address Pinging a known external IP address is often used by malware to check internet connectivity. Informational Platform Analytics Process execution Defense Evasion
BIOC Pluggable Authentication Modules Access Access to Pluggable Authentication Modules. Informational Platform Analytics Process execution Credential Access
BIOC Pluggable Authentication Modules Modification Modification of Pluggable Authentication Modules. Informational Platform Analytics File Credential Access
BIOC Possible ARP reconnaissance The ARP binary could be used for network mapping (common with malware). Informational Platform Analytics Process execution Discovery
BIOC Possible ARP reconnaissance via netdiscover Netdiscover is an active/passive ARP reconnaissance tool, which attackers may use to learn your network. Informational Platform Analytics Process execution Discovery
BIOC Possible data destruction via dd Attackers may use dd to zero out or write random data to files. Informational Platform Analytics Process execution Impact
BIOC Possible log destruction using the dd command Possible destruction of system log files using the dd command. Informational Platform Analytics File Defense Evasion
BIOC Possible user enumeration via /etc/passwd Attackers may enumerate users by reading the /etc/passwd file. Informational Platform Analytics Process execution Discovery
BIOC Possible user enumeration via finger The Linux 'finger' command performs user enumeration, which attackers may attempt to gather during the reconnaissance phase. Informational Platform Analytics Process execution Discovery
BIOC Possible web shell command execution Possible command execution via a web shell for reconnaissance. Informational Platform Analytics Process execution Persistence
BIOC Possible XDG autostart persistency Possible persistency gained by writing or creating a desktop file inside the xdg autostart directory. Informational Platform Analytics File Persistence
BIOC Potential Network Sniffing Network sniffing related processes were detected. Informational Platform Analytics Process execution Credential Access, Discovery
BIOC Potential web shell installation A web-app script file was installed on a web server. This can indicate an installation of web shell. Informational Platform Analytics File Persistence
BIOC PowerShell calling Invoke-Expression argument These PowerShell arguments are often used to run commands with malicious intent. Informational Platform Analytics Process execution Execution
BIOC PowerShell is used to execute a CPL file Attackers may use PowerShell.exe to execute a CPL file to achieve Control Panel proxy execution. Informational Platform Analytics Process execution Defense Evasion
BIOC PowerShell is used to modify a timestamp Attackers may use PowerShell.exe to modify the timestamp of a file. Informational Platform Analytics Process execution Defense Evasion
BIOC PowerShell possibly attempting to execute as administrator This PowerShell argument is often used to run commands with malicious intent. Informational Platform Analytics Process execution Execution
BIOC PowerShell running with download in the command line PowerShell can be used to download malicious content from the internet. Informational Platform Analytics Process execution Execution
BIOC PowerShell script executed from a temporary directory An attacker may try to avoid detection by executing a PowerShell script from a temporary directory. Informational Platform Analytics Process execution Collection
BIOC Print spooler set to load new DLL on boot Malware can use this technique to load malicious code at startup that will persist on system reboot. This DLL must be located in C:\Windows\System32 and will be loaded by the print spooler service, spoolsv.exe, on boot. A port monitor can be set through the AddMonitor API. Informational Platform Analytics Registry Persistence
BIOC PsExec attempts to execute a command on a remote host PsExec is a SysInternals tool used to execute commands on remote hosts. Informational Platform Analytics Network Lateral Movement, Execution
BIOC PsExec executed with plain-text credentials on the command line PsExec.exe is a Windows administrative tool, which may be used by adversaries to execute remote commands. Informational Platform Analytics Process execution Execution
BIOC PsExec execution EulaAccepted flag added to the Registry PsExec is commonly used by malware for lateral movement, seeing this value in the Registry means that the user ran PsExec and approved the EULA either automatically or manually. Informational Platform Analytics Registry Lateral Movement, Execution
BIOC PsExec runs with System privileges PsExec.exe is a Windows administrative tool, it can be used to elevate privileges and run other processes with NT/System privilege level. Informational Platform Analytics Process execution Privilege Escalation
BIOC Psexesvc.exe executes a command from a remote host Psexesvc.exe executes to run a command received from a remote host via PsExec. Informational Platform Analytics Process execution Execution
BIOC Query startup programs using wmic.exe Attackers may use wmic.exe to query programs that run automatically when users log onto the computer system. Informational Platform Analytics Process execution Discovery, Execution
BIOC Rar.exe execution with password protection parameters Rar.exe was executed with parameters indicating password protection of the output file. Informational Platform Analytics Process execution Collection
BIOC RDP connections enabled via Registry from a script host or rundll32.exe An attacker may enable RDP connections to a machine by setting the fDenyTSConnections Registry key to 0. Informational Platform Analytics Registry Lateral Movement
BIOC Reading .ssh files Attackers may gather SSH keys (typically found in the ~/.ssh/ directory) to later use to authenticate with remote SSH servers. Informational Platform Analytics Process execution Credential Access
BIOC Reading the contents of /etc/mtab or /etc/fstab File read on /etc/mtab or /etc/fstab using the cat utility. Informational Platform Analytics Process execution Discovery
BIOC Registry credentials extraction Attackers may extract credentials from the Registry using system commands. Informational Platform Analytics Process execution Credential Access
BIOC Remote file copy Remote copy operation of a file using rsync or scp or sftp. Informational Platform Analytics Process execution Lateral Movement
BIOC Remote RDP session enumeration via query.exe Attackers may use the built-in query.exe tool to enumerate remote sessions, using the session flag. Informational Platform Analytics Process execution Lateral Movement
BIOC Remote RDP session enumeration via qwinsta.exe Attackers may use the built-in qwinsta.exe tool to enumerate remote sessions. Informational Platform Analytics Process execution Lateral Movement
BIOC Remote system discovery Remote system discovery using a system utility. Informational Platform Analytics Process execution Discovery
BIOC Reverse shell one-liner using a scripting engine An attacker may use scripting engines to execute code from the command line to open a reverse shell. Informational Platform Analytics Process execution Execution
BIOC Reverse shell using PowerShell PowerShell can start a reverse shell console for attackers using these commands and take control of the machine. Informational Platform Analytics Process execution Execution
BIOC Root certificate installed Installation of a root certificate on a compromised system would give an adversary a way to degrade the security of that system. Informational Platform Analytics Registry Defense Evasion
BIOC Root certificate installed Installation of a root certificate on a compromised system would give an adversary a way to degrade the security of that system. Informational Platform Analytics Process execution Defense Evasion
BIOC Rundll32 loads a known abused DLL Rundll32.exe is called to execute an arbitrary binary, this execution may also bypass whitelisting defenses as a signed Microsoft application. Informational Platform Analytics Process execution Defense Evasion
BIOC Screen capture via command-line tool Attackers may use the window system screen capture tool to collect screenshots. Informational Platform Analytics Process execution Collection
BIOC Scripting engine creates a compressed file under a suspicious folder Attackers may compress data before exfiltrating it to reduce network bandwidth consumption; if a compressed file is placed in a suspicious folder, it may be due to malicious activity. Informational Platform Analytics File Collection
BIOC Scripting engine creates an Alternate Data Stream (ADS) Malware may hide data inside alternate data streams instead of inside a file. Informational Platform Analytics File Defense Evasion
BIOC Scripting engine makes connections over DNS ports Scripting engine makes connections over DNS ports should not happen, as DNS traffic is typically managed by svchost and sometimes the browsers. Attackers are known to use DNS traffic to exfiltrate data and avoid detection. Informational Platform Analytics Network Exfiltration
BIOC Scripting process reads Outlook data files Attackers may try to retrieve email data and sensitive information from .ost and .pst files. Informational Platform Analytics File Collection
BIOC Security services stopped Attackers may stop security critical services to avoid possible detection of their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC Security Support Provider (SSP) registered via a registry key Security Support Provider (SSP) exposes a number of callbacks to be invoked during certain authentication and authorization events. An attacker may register SSP to try and gain access to clear text passwords. Informational Platform Analytics Registry Privilege Escalation
BIOC SELinux was set to permissive mode SELinux was set to permissive mode using the "setenforce 0" command. Informational Platform Analytics Process execution Defense Evasion
BIOC Setuid on file Setting user identification on an executable file causes it to run with the privileges of the owning user. Informational Platform Analytics Process execution Privilege Escalation
BIOC Shared resource management discovery using wmic.exe Attackers may use wmic.exe to discover shared resource management information. Informational Platform Analytics Process execution Discovery, Execution
BIOC Shell binary copied to another location Attackers may try to evade detection by copying the shell binary to an innocent-looking name. Informational Platform Analytics Process execution Defense Evasion
BIOC Shell History Access Access to files holding shell history information. Informational Platform Analytics File Credential Access, Collection
BIOC Shell history access Attackers may search historical commands for credentials and information gathering. Informational Platform Analytics Process execution Credential Access
BIOC Shell History Access Access to files holding shell history information. Informational Platform Analytics Process execution Credential Access, Collection
BIOC Shim database file access An attacker may install a malicious SDB (shim database) file on disk for privilege escalation and persistence. Informational Platform Analytics File Persistence, Privilege Escalation
BIOC Shim database registration via Registry Application shim databases may be leveraged for privilege escalation and persistence, and can be installed by modifying the Registry. Informational Platform Analytics Registry Persistence
BIOC Shutdown command issued This behavior is often observed by malware attempting to force a machine shutdown after a period of time once file encryption has completed. Informational Platform Analytics Process execution Impact
BIOC Simulation activity by AttackIQ Simulation activity performed by AttackIQ agent. Informational Platform Analytics File Execution, Resource Development
BIOC Simulation activity by Cymulate Simulation activity performed by Cymulate agent. Informational Platform Analytics File Execution, Resource Development
BIOC Simulation activity by SafeBreach Simulation activity performed by a SafeBreach agent. Informational Platform Analytics File Execution, Resource Development
BIOC SmartScreen disabled via Registry These Registry keys control the SmartScreen. Malware may turn it off to evade SmartScreen functionality. Informational Platform Analytics Registry Defense Evasion
BIOC SMB enumeration via command-line tool Attackers may use SMB enumeration to retrieve information about network shares, printers, and other resources. Informational Platform Analytics Process execution Discovery