Ankit Mehta
@SecvynIndiaTrusted contributorCompletionist
7 followers9,573 downloads10,253 copies160 likes55,633 views
8,655 detections
Filters
Last updated
All Time
Detection languages
5,827
1,081
677
439
436
Categories
2,646
2,040
1,304
944
814
Platforms
5,999
954
874
706
593
Products / Services
2,800
1,372
1,362
725
707
MITRE Techniques
2,087
2,043
1,442
1,092
1,085
CVEs
17
16
15
11
11
IDS Classtypes
250
132
95
68
64
IDS Protocols
405
140
49
36
14
Detects Azure Bastion RDP or SSH tunnel sessions initiated by users who have no history of using Bastion in the last 60 days, or by users connecting from a geographic location not observed in their recent sign-in history. This behavior may indicate account compromise and unauthorized lateral movement attempts.
Detects the modification of the 'UseLogonCredential' registry value to '1' within the WDigest security package settings. Enabling this setting allows the WDigest authentication protocol to cache cleartext credentials in the LSASS process memory, which is a common technique used by attackers to facilitate credential dumping and facilitate lateral movement.
Detects non-browser processes initiating HTTPS network connections to well-known public DNS over HTTPS (DoH) resolvers. This behavior is often associated with command and control (C2) communication, where malware attempts to evade network security controls by tunneling DNS queries through encrypted HTTPS traffic.
This rule identifies potential account compromise by detecting successful logins to at least two different SaaS applications monitored by Microsoft Cloud App Security (MCAS) within a 2-hour window, originating from geolocations separated by more than 500 kilometers. This behavior is indicative of credential sharing or account hijacking where an adversary accesses multiple cloud services rapidly from geographically distant locations.
Detects the creation or modification of Named Locations within Conditional Access policies that include IP ranges. This behavior could indicate an attacker whitelisting their own IP addresses to maintain persistence or bypass Conditional Access security controls. The rule correlates changes with administrative context, such as non-standard business hours, weekends, or modifications by unexpected accounts.
Detects instances where common web browsers (chrome.exe, firefox.exe, etc.) spawn command shells (cmd.exe, powershell.exe) to execute suspicious commands or perform file downloads, often indicative of an initial stage of a drive-by download or malicious script execution.
This rule detects the use of common cloud command-line interfaces (Azure CLI, Azure PowerShell, and AWS CLI) to perform resource discovery, specifically identifying commands used to list virtual machines or describe EC2 instances. Such activity, if performed by an unexpected user or on an endpoint where cloud management tools are not typically installed, may indicate reconnaissance by an adversary.
Detects instances where common browser processes or Windows Explorer initiate suspicious child processes like cmd.exe, powershell.exe, or mshta.exe. The rule uses a scoring mechanism based on the presence of encoded command indicators, web-related payloads, or specific HTA script arguments to identify potentially malicious activity such as drive-by downloads or living-off-the-land execution.
Detects an unusually high frequency of storage blob and container listing operations within a short time window. This behavior often indicates an attempt to enumerate the contents of Azure Blob Storage, which may be a precursor to data discovery or exfiltration.
This rule detects common security product executables (MsMpEng.exe, SenseNdr.exe, csfalconservice.exe, CylanceSvc.exe) that are running from file paths inconsistent with their legitimate installation directories. This behavior is indicative of an adversary attempting to masquerade as trusted security software to evade detection or achieve persistence.
Page 681 of 866