Detectors

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

109 detectors match the current filters. tactic: TA0005 ✕

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Type Name Severity Module Data source / event ATT&CK
BIOC Accessing bash history file Clearing bash history file is a known procedure of attackers to delete traces. Low Platform Analytics Process execution Defense Evasion
BIOC Accessing bash history file using bash commands Clearing bash history files is a known attacker procedure for covering their tracks. Low Platform Analytics Process execution Defense Evasion
BIOC Administrator obtains access rights to a file using icacls.exe Grant an administrator file access privileges. Informational Platform Analytics Process execution Defense Evasion
BIOC AMSI Bypass AMSI (Antimalware Scan Interface) provides enhanced malware protection on Windows 10 machines. Attackers may try to bypass this mechanism and run malicious code. Medium Platform Analytics Process execution Defense Evasion
BIOC Base64 decoding using the base64 utility Base64 decoding using the base64 utility with the -d argument provided. Informational Platform Analytics Process execution Defense Evasion
BIOC Bitsadmin.exe used to upload data Some attacks are known to abuse BITSAdmin to hide how data upload using legitimate Windows tools. High Platform Analytics Process execution Exfiltration, Defense Evasion
BIOC Browser downloads an .hta or .application file .hta and .application files are Windows applications that may serve as an attack vector by executing code maliciously using trusted Windows applications. Informational Platform Analytics File Defense Evasion
BIOC Changing permissions or ownership of a file or folder Changing the permissions or ownership of a file or folder can be done to get access to sensitive data. Informational Platform Analytics Process execution Defense Evasion
BIOC Chrome launched in Incognito mode May be used to cover up malware or malicious insider activity. Informational Platform Analytics Process execution Defense Evasion
BIOC Clear event logging policy using auditpol.exe Attackers may clear Windows Event Logging policies using auditpol.exe. Informational Platform Analytics Process execution Defense Evasion
BIOC Clear logs - using dd and /dev/null Usage of the dd utility to clear the contents of a file using /dev/null. Medium Platform Analytics Process execution Defense Evasion
BIOC Clearing logs by copying /dev/null to a log file Usage of the cp command to copy /dev/null to a file and clear its content. Informational Platform Analytics Process execution Defense Evasion
BIOC Clearing logs by executing cat /dev/null Usage of cat /dev/null to clear the contents of a log file. Informational Platform Analytics Process execution Defense Evasion
BIOC Common Apple process name missing Apple digital signature These common Apple process names should normally be signed with the Apple Inc. digital signature. Naming processes with common names is a common way attackers obfuscate their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC Common Mozilla process name missing Mozilla digital certificate These common Mozilla process names should normally be signed with the Mozilla Corporation digital signature. Naming processes with common names is a common way attackers obfuscate their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC Commonly abused process executed with obfuscated characters Commonly abused process executed with obfuscated characters. Informational Platform Analytics Process execution Defense Evasion
BIOC Commonly abused process spawns out of rundll32.exe This type of execution happens in .dll based attacks. Informational Platform Analytics Process execution Defense Evasion
BIOC Compiled HTML (help file) makes network connections Compiled HTML (help files) should not normally need to connect to the network. This may have limited legitimate uses, yet this behavior is often observed by malware leveraging malicious CHM files to deliver a 2nd stage payload. Informational Platform Analytics Network Defense Evasion
BIOC Compiler process started by an Office process The processes (csc.exe & vbc.exe) invoke compilers via command prompt and compile a payload on the fly. This is leveraged by attackers to create a new payload on every machine. Informational Platform Analytics Process execution Defense Evasion
BIOC Data destruction using sdelete.exe Attackers may use sdelete.exe to delete files from the target host. Informational Platform Analytics Process execution Defense Evasion, Impact
BIOC Delete Volume USN Journal with fsutil This technique is used by attackers to eliminate evidence of files created during post-exploitation activities. Medium Platform Analytics Process execution Defense Evasion
BIOC Disable outlook security via Registry Attackers may try to disable outlook security features by modifying the Registry. Informational Platform Analytics Registry Defense Evasion
BIOC Disabling Windows Defender via Registry Windows Defender stores its configuration in the Registry. By modifying these values, an attacker can disable security features. Informational Platform Analytics Registry Defense Evasion
BIOC DLL sideloading attack using Xwizard Xwizard has a known DLL-sideloading vulnerability, which involves moving the legitimate Xwizard.exe file into a new directory along with a malicious Xwizard.dll file. This is a possible indicator of an attacker preparing to execute a DLL-sideloading attack. Low Platform Analytics Process execution Defense Evasion
BIOC Driver written to a temporary directory Drivers are highly unlikely to be written or moved to a temp directory. Check whether this driver is legitimate. Informational Platform Analytics File Defense Evasion
BIOC Encoded VBScript executed Attackers tend to hide their malicious behavior in many ways, one of which is obfuscating their code via encoding. High Platform Analytics Process execution Execution, Defense Evasion
BIOC Evasion using time-based properties Attackers may check Event Log to evade virtualized environments. Informational Platform Analytics Process execution Defense Evasion, Discovery
BIOC EventLog service disabled by a Registry operation A Registry set-value operation that disables the EventLog service was executed on the machine. High Platform Analytics Registry Defense Evasion
BIOC Execution of commonly abused AutoIT script AutoIT scripts have legitimate uses, but are often abused by malware to execute in a signed process context. Informational Platform Analytics Process execution Defense Evasion
BIOC Execution of regsvcs/regasm with uncommon paths The regasm.exe/regsvcs.exe commands are used to register .NET COM assemblies, which are typically located in specific paths. Uncommon paths may indicate malicious code is being registered. Informational Platform Analytics Process execution Defense Evasion
BIOC Execution of WSL Distro Detecting a new instance execution of Windows Subsystem for Linux distro. Informational Platform Analytics File Defense Evasion
BIOC File renamed to have a script extension Adversaries may create 'benign-looking' files, which are later used as malicious scripts by changing their extension. Informational Platform Analytics File Defense Evasion
BIOC File timestamp tampering An attacker may modify file timestamps by running the touch command to hide their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC Fltmc.exe used to unload filter driver Attackers can abuse the Filter Manager Control Program (fltMC.exe) to unload MiniFilter drivers, some of which may be used for activity monitoring. Informational Platform Analytics Process execution Defense Evasion
BIOC Hidden directory creation Attackers may create hidden directories to hide malware or staged files. Informational Platform Analytics Process execution Defense Evasion
BIOC Hidden file and directory creation Creation of a hidden file inside a hidden directory. Informational Platform Analytics File Defense Evasion
BIOC Impersonation using Rubeus tool User authentication should not be impersonated, since this is considered a malicious behavior. Medium Platform Analytics Process execution Defense Evasion
BIOC Injection into ping.exe A process injected into an instance of ping.exe. Informational Platform Analytics Remote code Defense Evasion
BIOC Internet Explorer security settings modification The Security Settings Check feature, which checks Internet Explorer security settings to determine risk, was disabled. Informational Platform Analytics Registry Defense Evasion
BIOC ISO mounted manually A user manually mounted an ISO file. Informational Platform Analytics File Defense Evasion
BIOC Kerberos ticket forging using Impacket ticketer Suspected execution of Impacket's ticketer.py script for forging TGT/TGS Kerberos tickets. Medium Platform Analytics Process execution Defense Evasion, Privilege Escalation
BIOC Log deletion in known log file directories Deletion of log files in known log directories. Informational Platform Analytics File Defense Evasion
BIOC Log deletion using the truncate command Usage of the truncate utility using "-s 0" argument to clear log files. Informational Platform Analytics Process execution Defense Evasion
BIOC Log deletion via command-line tool An attacker may use the rm command to remove traces of their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC MacOS firewall manipulation An attacker may modify a firewall via command line to bypass network controls. Informational Platform Analytics Process execution Defense Evasion
BIOC Manipulation of Crypto Subject Interface Package (SIP) Provider Malicious modification of crypto subject interface package (SIP) provider Registry keys can be leveraged to trick the OS into incorrectly validating invalid signing certificates. May have legitimate uses, but check for malicious activity. Informational Platform Analytics Registry Defense Evasion
BIOC Manipulation of Windows Defender configuration Commands used to bypass, disable or harm Windows Defender. Informational Platform Analytics Process execution Defense Evasion
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 Microsoft Connection Manager Profile Installer loads a file from the users to temporary folder The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Process execution Defense Evasion
BIOC Microsoft Connection Manager Profile Installer makes connections to the network The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Network Defense Evasion
BIOC Microsoft Connection Manager Profile Installer runs command line or PowerShell The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Process execution Defense Evasion
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 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 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 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 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 Notepad process makes a network connection Notepad.exe processes should not normally make network connections (with the occasional exception of printing documents). This can be a possible indicator of exploitation, e.g. Metasploit Meterpreter injection. Low Platform Analytics Network Defense Evasion
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 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 Possible log destruction using the dd command Possible destruction of system log files using the dd command. Informational Platform Analytics File Defense Evasion
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 Process attempts to kill a known security/AV tool This process has attempted to use taskkill.exe to terminate a known AV process or security analysis tool. Likely attempt to evade detection. Medium Platform Analytics Process execution Defense Evasion
BIOC Process runs from the recycle bin Process running from the recycle bin. Low Platform Analytics Process execution Defense Evasion
BIOC Pubprn.vbs signed script proxy execution Pubprn.vbs is a standard script that is installed with Windows that can be abused to run malicious scripts. This behavior may bypass signature validation restrictions and application whitelisting solutions. High Platform Analytics Process execution Defense Evasion
BIOC Regsvr32 may have run code from an untrusted source Regsvr32 may be used to run arbitrary code by passing the '/i' parameter. The code may also be hosted on a remote host. High Platform Analytics Process execution 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 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 Rundll32.exe launches an executable using ordinal numbers argument Rundll32.exe launches an executable using ordinal numbers argument, this behavior may be used by attackers to evade detection. Medium Platform Analytics Process execution Defense Evasion
BIOC Rundll32.exe was used to run JavaScript Attackers may execute malicious JavaScript code (either remotely or locally) using rundll32.exe. Medium Platform Analytics Process execution Defense Evasion
BIOC Rundll32.exe with 'main' as EntryPoint Rundll32.exe ran with 'main' as EntryPoint. Attackers may leverage rundll32.exe to execute malicious functions and DLLs. Medium Platform Analytics Process execution Defense Evasion
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 Security services stopped Attackers may stop security critical services to avoid possible detection of their activities. Informational Platform Analytics Process execution Defense Evasion
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 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 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 Space after filename creation An attacker may append a space to the end of a filename to change how it's processed by the operating system. Informational Platform Analytics File Defense Evasion
BIOC Suspicious .NET process spawns csc.exe A suspicious process in the Microsoft .NET directory spawned the C# compiler. This may occur if an attacker masquerades a process like MSBuild (e.g. PowerLessShell). Low Platform Analytics Process execution Defense Evasion
BIOC Suspicious AMSI DLL load location An attacker may attempt to load a malicious copy of amsi.dll to bypass Microsoft's Antimalware Scan Interface (AMSI). Low Platform Analytics Module Defense Evasion
BIOC Suspicious DLL load using Control.exe This execution mechanism is known to be used by malware to load malicious DLLs. Medium Platform Analytics Process execution Defense Evasion
BIOC Suspicious executable created in a .NET directory Cmd.exe created an executable file in the Microsoft .NET directory. This behavior is exhibited in the PowerLessShell tool to disguise MSBuild.exe. High Platform Analytics File Defense Evasion
BIOC Suspicious process spawns MSBuild.exe The Microsoft Build Engine was started by an abnormal process. MSBuild is normally used for development purposes, so this unusual behavior may be malicious. Medium Platform Analytics Process execution Defense Evasion
BIOC Suspicious usage of cytool.exe The Cortex XDR agent can be controlled by a command-line tool named cytool.exe. Attackers may use it to disable the Cortex XDR agent. Informational Platform Analytics Process execution Defense Evasion
BIOC SyncAppvPublishingServer used to run PowerShell code SyncAppvPublishingServer is part of Microsoft Application Virtualization (App-V), which may be used by an attacker to run PowerShell code. Informational Platform Analytics Process execution Defense Evasion
BIOC Tampering with the Windows System Restore configuration System Restore was disabled on the endpoint. In such a case, one may not be able to recover files in case of disaster. This may be initiated by the IT department, but also may indicate malicious activity such as ransomware. Low Platform Analytics Registry Defense Evasion, Impact
BIOC Tampering with Windows certificate blocking configuration Adding subkeys of the certificates to block disallows a security vendor's certificate on the affected computer, so that Windows would not allow the program to run. Informational Platform Analytics Registry Defense Evasion
BIOC Tampering with Windows Control Panel configuration DLLs with .cpl suffix are executed when accessing the Control Panel. Malicious code may run this way even if AppLocker enabled. Informational Platform Analytics Registry Defense Evasion
BIOC The scripting engine executed code from an Alternate Data Stream (ADS) Alternate Data Streams (ADSs) are NTFS Master File Table (MFT) data entries that relate to a file, but are separate from its contents. An attacker may try to evade detection by executing malware from the ADS value of a file. Informational Platform Analytics Process execution Defense Evasion
BIOC Unsigned process creates an Alternate Data Stream (ADS) Alternate Data Streams (ADSs) are NTFS Master File Table (MFT) data entries that relate to a file, but are separate from its contents. Malware may attempt to evade discovery by placing their payload in an ADS. Informational Platform Analytics File Defense Evasion
BIOC Unsigned process injects code into a process An unsigned process injected code into a process. This can be done to leverage a legitimate running process for an attack. Informational Platform Analytics Remote code Defense Evasion
BIOC Unsigned process running from a temporary directory Malware often runs from a temporary folder. Informational Platform Analytics Process execution Defense Evasion
BIOC Usage of tracing tool An attacker may be trying to use a known tracing tool to gather information from other processes. Informational Platform Analytics Process execution Defense Evasion
BIOC User account flagged as hidden Look for unsigned processes that add an entry to the hidden users Registry key. Informational Platform Analytics Registry Defense Evasion
BIOC WerFault ReflectDebugger key set in Registry The WerFault.exe signed Windows process may be tricked into running a malicious executable by setting the ReflectDebugger key in the Registry. Medium Platform Analytics Registry Defense Evasion
BIOC Windows 10 Developer Mode enabled Enabling developer mode allows for app sideloading and starts the Windows SSH services, which may be used to install Linux Bash on Windows. Informational Platform Analytics Registry Defense Evasion
BIOC Windows event logs cleared using wmic.exe Attackers may clear events from Windows event logs to remove traces of their malicious activity. Medium Platform Analytics Process execution Defense Evasion
BIOC Windows Firewall disabled via Registry An attacker may disable the Windows Firewall via the Registry to bypass network controls. Informational Platform Analytics Registry Defense Evasion