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EXPLORE DETECTIONS

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3,281 detections found

Suspicious File Write to SharePoint Layouts Directory

Detects suspicious file writes to SharePoint layouts directory which could indicate webshell activity or post-exploitation. This behavior has been observed in the exploitation of SharePoint vulnerabilities such as CVE-2025-49704, CVE-2025-49706 or CVE-2025-53770.

T1190T1505.003
Sigmahigh

Suspicious File Write to Webapps Root Directory

Detects suspicious file writes to the root directory of web applications, particularly Apache web servers or Tomcat servers. This may indicate an attempt to deploy malicious files such as web shells or other unauthorized scripts.

T1505.003T1190
Sigmamedium

Suspicious FileFix Execution Pattern

Detects suspicious FileFix execution patterns where users are tricked into running malicious commands through browser file upload dialog manipulation. This attack typically begins when users visit malicious websites impersonating legitimate services or news platforms, which may display fake CAPTCHA challenges or direct instructions to open file explorer and paste clipboard content. The clipboard content usually contains commands that download and execute malware, such as information stealing tools.

T1204.004
Sigmahigh

Suspicious Filename with Embedded Base64 Commands

Detects files with specially crafted filenames that embed Base64-encoded bash payloads designed to execute when processed by shell scripts. These filenames exploit shell interpretation quirks to trigger hidden commands, a technique observed in VShell malware campaigns.

T1059.004T1027
Sigmahigh

Suspicious Files in Default GPO Folder

Detects the creation of copy of suspicious files (EXE/DLL) to the default GPO storage folder

T1036.005
Sigmamedium

Suspicious FromBase64String Usage On Gzip Archive - Process Creation

Detects attempts of decoding a base64 Gzip archive via PowerShell. This technique is often used as a method to load malicious content into memory afterward.

T1132.001
Sigmamedium

Suspicious FromBase64String Usage On Gzip Archive - Ps Script

Detects attempts of decoding a base64 Gzip archive in a PowerShell script. This technique is often used as a method to load malicious content into memory afterward.

T1132.001
Sigmamedium

Suspicious Get Information for SMB Share

Adversaries may look for folders and drives shared on remote systems as a means of identifying sources of information to gather as a precursor for Collection and to identify potential systems of interest for Lateral Movement. Networks often contain shared network drives and folders that enable users to access file directories on various systems across a network.

T1069.001
Sigmalow

Suspicious Get Information for SMB Share - PowerShell Module

Adversaries may look for folders and drives shared on remote systems as a means of identifying sources of information to gather as a precursor for Collection and to identify potential systems of interest for Lateral Movement. Networks often contain shared network drives and folders that enable users to access file directories on various systems across a network.

T1069.001
Sigmalow

Suspicious Get Local Groups Information

Detects the use of PowerShell modules and cmdlets to gather local group information. Adversaries may use local system permission groups to determine which groups exist and which users belong to a particular group such as the local administrators group.

T1069.001
Sigmalow

Suspicious Get Local Groups Information - PowerShell

Detects the use of PowerShell modules and cmdlets to gather local group information. Adversaries may use local system permission groups to determine which groups exist and which users belong to a particular group such as the local administrators group.

T1069.001
Sigmalow

Suspicious Get-ADDBAccount Usage

Detects suspicious invocation of the Get-ADDBAccount script that reads from a ntds.dit file and may be used to get access to credentials without using any credential dumpers

T1003.003
Sigmahigh

Suspicious Get-ADReplAccount

The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. These include FIDO2 and NGC key auditing, offline ntds.dit file manipulation, password auditing, DC recovery from IFM backups and password hash calculation.

T1003.006
Sigmamedium

Suspicious Get-Variable.exe Creation

Get-Variable is a valid PowerShell cmdlet WindowsApps is by default in the path where PowerShell is executed. So when the Get-Variable command is issued on PowerShell execution, the system first looks for the Get-Variable executable in the path and executes the malicious binary instead of looking for the PowerShell cmdlet.

T1546T1027
Sigmahigh

Suspicious GetTypeFromCLSID ShellExecute

Detects suspicious Powershell code that execute COM Objects

T1546.015
Sigmamedium

Suspicious Git Clone

Detects execution of "git" in order to clone a remote repository that contain suspicious keywords which might be suspicious

T1593.003
Sigmamedium

Suspicious Git Clone - Linux

Detects execution of "git" in order to clone a remote repository that contain suspicious keywords which might be suspicious

T1593.003
Sigmamedium

Suspicious GPO Discovery With Get-GPO

Detect use of Get-GPO to get one GPO or all the GPOs in a domain.

T1615
Sigmalow

Suspicious Greedy Compression Using Rar.EXE

Detects RAR usage that creates an archive from a suspicious folder, either a system folder or one of the folders often used by attackers for staging purposes

T1059
Sigmahigh

Suspicious Group And Account Reconnaissance Activity Using Net.EXE

Detects suspicious reconnaissance command line activity on Windows systems using Net.EXE Check if the user that executed the commands is suspicious (e.g. service accounts, LOCAL_SYSTEM)

T1087.001T1087.002
Sigmamedium

Suspicious GrpConv Execution

Detects the suspicious execution of a utility to convert Windows 3.x .grp files or for persistence purposes by malicious software or actors

T1547
Sigmahigh

Suspicious GUP Usage

Detects execution of the Notepad++ updater in a suspicious directory, which is often used in DLL side-loading attacks

T1574.001
Sigmahigh

Suspicious HH.EXE Execution

Detects a suspicious execution of a Microsoft HTML Help (HH.exe)

T1047T1059.001T1059.003T1059.005T1059.007+6
Sigmahigh

Suspicious High IntegrityLevel Conhost Legacy Option

ForceV1 asks for information directly from the kernel space. Conhost connects to the console application. High IntegrityLevel means the process is running with elevated privileges, such as an Administrator context.

T1202
Sigmainformational
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