Lacey Cochrane
@NullVectorXUSTrusted contributorCompletionist
11 followers159 downloads2,514 copies56 likes67,916 views
245 detections
Filters
Last updated
All Time
Detection languages
245
Categories
73
66
54
29
29
Platforms
83
58
36
26
24
Products / Services
35
26
23
21
19
MITRE Techniques
79
70
46
44
42
CVEs
4
4
Detects the execution of Chromium-based browsers (Chrome, Edge, Brave, Chromium) using command-line arguments '--load-extension' or '--disable-extensions-except'. These flags are typically used for development purposes but are abused by attackers to sideload malicious, unpacked extensions, bypassing the browser's extension store review process and enabling techniques such as credential theft or C2 persistence.
This rule detects instances where a user has explicitly marked an MFA push notification as fraudulent within the Duo Security platform. This indicates that an unauthorized party may have triggered an MFA request using stolen credentials, and the legitimate user is actively denying the authentication attempt.
Detects modifications to the 'msDS-KeyCredentialLink' attribute on user or computer objects within Active Directory. This attribute is targeted in 'Shadow Credentials' attacks (e.g., using tools like Whisker, pyWhisker, or DSInternals) to add an attacker-controlled public key, allowing for PKINIT-based authentication as the victim account without knowing the password.
Detects instances where a user who has not enrolled in Duo MFA successfully authenticates due to being connected to a defined trusted network. This behavior indicates an MFA coverage gap, potentially allowing an attacker to authenticate as an unenrolled user without MFA if they gain access to a trusted network or VPN.
Duo MFA Push Fatigue Activity
Cortex XDR
Detects a suspicious burst of multi-factor authentication (MFA) push request denials (such as user cancellations or ignored requests) originating from a single user within a short time window. This behavior is indicative of MFA fatigue, where an attacker repeatedly triggers MFA requests in an attempt to annoy or trick the legitimate user into inadvertently approving a push notification.
Slack Anomalous Activity
Cortex XDR
This rule detects anomalous activity reported by Slack's internal anomaly detection system. This includes events such as impossible travel, new device access, suspicious IP changes, and other behavioral anomalies that Slack identifies. The rule extracts relevant user and context information for further investigation.
This rule detects when common web browser processes spawn command-line shells or scripting interpreters. This behavior is often indicative of malicious browser extensions, browser exploitation, or remote code execution attempts, as browsers generally should not be launching native system shells.
This query performs comprehensive field extraction and normalization on SentinelOne Deep Visibility raw logs. It acts as a parsing and preparation layer to structure diverse event categories (process, network, file, registry, authentication, and task events) into a standardized format for security analysis, triage, and threat hunting.
This rule detects modifications to Azure Service Principal and Application object redirect URIs that match known patterns for reverse proxies, tunneling services, temporary callback infrastructure, or potential local token theft. Such changes may indicate an adversary attempting to establish persistent access, intercept authentication tokens, or bypass network controls via unauthorized application configurations.
This rule monitors Okta system logs for lifecycle events related to inbound Identity Providers (IdP), specifically creation, modification, activation, deactivation, or deletion. It flags these changes when initiated by clients identified as proxies or associated with known abused ASNs. This activity is indicative of potential cross-tenant impersonation where an attacker with administrative access adds a malicious IdP to federate and impersonate organizational users.
Page 11 of 25