Sigma Rules
11 rules found for "Josh Nickels"
Azure Login Bypassing Conditional Access Policies
Detects a successful login to the Microsoft Intune Company Portal which could allow bypassing Conditional Access Policies and InTune device trust using a tool like TokenSmith.
Remote Access Tool - Team Viewer Session Started On Linux Host
Detects the command line executed when TeamViewer starts a session started by a remote host. Once a connection has been started, an investigator can verify the connection details by viewing the "incoming_connections.txt" log file in the TeamViewer folder.
Remote Access Tool - Team Viewer Session Started On MacOS Host
Detects the command line executed when TeamViewer starts a session started by a remote host. Once a connection has been started, an investigator can verify the connection details by viewing the "incoming_connections.txt" log file in the TeamViewer folder.
Group Policy Abuse for Privilege Addition
Detects the first occurrence of a modification to Group Policy Object Attributes to add privileges to user accounts or use them to add users as local admins.
Startup/Logon Script Added to Group Policy Object
Detects the modification of Group Policy Objects (GPO) to add a startup/logon script to users or computer objects.
DNS Query Request To OneLaunch Update Service
Detects DNS query requests to "update.onelaunch.com". This domain is associated with the OneLaunch adware application. When the OneLaunch application is installed it will attempt to get updates from this domain.
Suspicious Deno File Written from Remote Source
Detects Deno writing a file from a direct HTTP(s) call and writing to the appdata folder or bringing it's own malicious DLL. This behavior may indicate an attempt to execute remotely hosted, potentially malicious files through deno.
BitLockerTogo.EXE Execution
Detects the execution of "BitLockerToGo.EXE". BitLocker To Go is BitLocker Drive Encryption on removable data drives. This feature includes the encryption of, USB flash drives, SD cards, External hard disk drives, Other drives that are formatted by using the NTFS, FAT16, FAT32, or exFAT file system. This is a rarely used application and usage of it at all is worth investigating. Malware such as Lumma stealer has been seen using this process as a target for process hollowing.
Remote Access Tool - Team Viewer Session Started On Windows Host
Detects the command line executed when TeamViewer starts a session started by a remote host. Once a connection has been started, an investigator can verify the connection details by viewing the "incoming_connections.txt" log file in the TeamViewer folder.
Mshtml.DLL RunHTMLApplication Suspicious Usage
Detects execution of commands that leverage the "mshtml.dll" RunHTMLApplication export to run arbitrary code via different protocol handlers (vbscript, javascript, file, http...)
Potential CommandLine Obfuscation Using Unicode Characters From Suspicious Image
Detects potential commandline obfuscation using unicode characters. Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit.