Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
This rule detects attempts to upload executable files (specifically Windows MZ executables) to common cloud storage services like Amazon S3, Google Cloud Storage, and Azure Blob Storage. It looks for HTTP PUT requests containing the 'MZ' magic bytes at the beginning of the file data, indicating a Windows executable, with a file size greater than 100KB, directed towards known cloud storage domains.
'Looks for file uploads actions to Azure File and Blob Storage from known VPS provider network ranges.
This is not an exhaustive list of VPS provider ranges but covers some of the most prevalent providers observed.'
This is not an exhaustive list of VPS provider ranges but covers some of the most prevalent providers observed.'
'This query helps identify rare DNS connections and resulting data transfer to/from the associated domain. It can help identify unexpected large data transfers to or from internal systems which may indicate data exfil or malicious tool download.'
'This rule identifies a web request with a user agent header known to belong to a hacking tool. This indicates a hacking tool is used on the host.<br>You can add custom hacking tool indicating User-Agent headers using a watchlist, for more information refer to the [UnusualUserAgents Watchlist](https://aka.ms/ASimUnusualUserAgentsWatchlist).
This analytic rule uses [ASIM](https://aka.ms/AboutASIM) and supports any built-in or custom source that supports the ASIM WebSession schema (ASIM WebSession Schema)'
This analytic rule uses [ASIM](https://aka.ms/AboutASIM) and supports any built-in or custom source that supports the ASIM WebSession schema (ASIM WebSession Schema)'
'This hunting query will try to identify the user account used to perform a file upload to blob storage.
This query can be used to match all file upload events, or filtering can be applied on filename to search for a specific upload.'
This query can be used to match all file upload events, or filtering can be applied on filename to search for a specific upload.'
'Finds instances where a file uploaded to blob or file storage and it is seen on an endpoint by Microsoft Defender XDR.'