January 2024 (30)
Azure AD PowerShell Authentication Abuse
2 rules 2 TTPsAdversaries may compromise accounts and leverage successful PowerShell authentication in Azure AD to enumerate cloud resources, escalate privileges, and further exploit the Azure environment.
Azure AD User Consent Denied for OAuth Application
2 rules 1 TTPThis analytic identifies instances where a user has denied consent to an OAuth application seeking permissions within the Azure AD environment, potentially indicating malicious OAuth application activity.
Braodo Stealer Screen Capture in TEMP Directory
2 rules 1 TTPThis analytic detects the creation of screen capture files in the TEMP directory, specifically targeting activity associated with the Braodo stealer malware, which captures screenshots of the victim's desktop as part of its data theft activities.
Cisco ASA Device File Copy to Remote Location
2 rules 3 TTPsThe analytic detects file copy operations from Cisco ASA devices to remote locations using protocols like TFTP, FTP, HTTP, HTTPS, SMB, or SCP, potentially indicating data exfiltration by threat actors targeting network devices.
Cisco ASA User Account Deletion
2 rules 2 TTPsDetection of user account deletion on Cisco ASA devices, potentially indicating adversary attempts to cover tracks, disrupt incident response, or deny administrator access.
Cisco ASA User Privilege Level Change Detection
2 rules 2 TTPsDetection of unauthorized privilege level changes on Cisco ASA devices, potentially indicating privilege escalation or persistence attempts by threat actors.
Conhost Proxy Execution for Defense Evasion
2 rules 4 TTPsAdversaries abuse the Console Window Host (conhost.exe) with the `--headless` argument to proxy command execution, evading detection by blending malicious activity with legitimate Windows software.
CoreDNS Transfer Plugin ACL Bypass Vulnerability
2 rules 1 TTPCoreDNS' transfer plugin prior to version 1.14.3 can select the wrong ACL stanza due to lexicographic comparison, leading to unauthorized zone transfers by clients intended to be denied by subzone-specific transfer policies.
Daptin Unauthenticated Path Traversal and Zip Slip Vulnerability
1 rule 2 TTPsDaptin versions up to and including v0.11.3 are vulnerable to unauthenticated path traversal and zip slip attacks via the cloudstore.file.upload action, allowing arbitrary file write and potential remote code execution.
Detecting Remote Scheduled Task Creation for Lateral Movement
2 rules 2 TTPsThis rule identifies remote scheduled task creations on a target Windows host, potentially indicating lateral movement by adversaries, by monitoring network connections and registry modifications related to task scheduling.
Detection of Public AWS S3 Bucket Creation via CLI
2 rules 1 TTPAn AWS user creates a publicly accessible S3 bucket by using the AWS CLI to set permissive ACLs, potentially leading to unauthorized data access and data breaches.
Detection of Taskkill Command to Terminate Browser Processes
2 rulesThis analytic detects the use of the taskkill command to terminate known browser processes, a technique employed by malware such as Braodo stealer to steal credentials by forcefully closing browsers like Chrome, Edge, and Firefox to unlock files containing sensitive information.
Detection of Unauthorized Windows Hosts File Access
2 rules 1 TTPThis analytic detects processes attempting to access the Windows hosts file, enabling attackers to redirect traffic to malicious sites or block legitimate security websites by modifying DNS resolution.
Detects Kirbi File Creation
2 rules 1 TTPDetects the creation of .kirbi files, a suspicious Kerberos ticket artifact often produced by ticket export or dumping tools such as Rubeus or Mimikatz, indicating preparation for Kerberos ticket theft or Pass-The-Ticket (PTT) attacks.
Directus File Overwrite Vulnerability (CVE-2026-39942)
2 rules 2 TTPs 1 CVEA file overwrite vulnerability (CVE-2026-39942) exists in Directus versions prior to 11.17.0, where an attacker can overwrite another user's files by manipulating the filename_disk parameter in the PATCH /files/{id} endpoint, potentially leading to data corruption or privilege escalation.
Disabling CMD Application via Registry Modification
2 rules 1 TTPAttackers modify the Windows registry to disable the command prompt (cmd.exe), hindering incident response and potentially maintaining persistence.
Disabling LSA Protection via Registry Modification
2 rules 3 TTPsAttackers may disable LSA protection by modifying the RunAsPPL registry value in order to access LSASS memory and dump credentials, potentially leading to credential compromise and further lateral movement.
Download Monitor WordPress Plugin Insecure Direct Object Reference
2 rules 1 TTPThe Download Monitor plugin for WordPress is vulnerable to Insecure Direct Object Reference (IDOR) allowing unauthenticated attackers to steal paid digital goods by manipulating PayPal transaction tokens to complete arbitrary orders.
Entra ID Application Credential Modification
3 rules 2 TTPsAn adversary may add unauthorized credentials to an Azure application, enabling persistent access, evading defenses, and escalating privileges by modifying certificates or secrets.
Entra ID High Risk Sign-in Detected
2 rules 1 TTPThis rule detects high-risk sign-ins in Microsoft Entra ID, as identified by Identity Protection, where the sign-in is flagged with a risk level of `high` during the authentication process, indicating a strong likelihood of account compromise.
ESXi Account Modification Detection
2 rules 7 TTPsDetection of local user account creation, deletion, or modification on an ESXi host, potentially indicating unauthorized access, persistence attempts, or defense evasion.
ESXi Loghost Configuration Tampering
2 rules 1 TTPAttackers modify the ESXi host's syslog configuration to disrupt log forwarding, potentially evading detection and hindering incident response efforts after a compromise.
Executable or Script Creation in Suspicious Paths
2 rules 1 TTPThis analytic identifies the creation of executables or scripts in suspicious file paths on Windows systems, where adversaries often use these paths to evade detection and maintain persistence, potentially leading to unauthorized code execution, privilege escalation, or persistence within the environment.
Fortinet Appliance Authentication Bypass Vulnerability (CVE-2022-40684) Exploitation
2 rules 2 TTPsExploitation of CVE-2022-40684, a Fortinet appliance authentication bypass vulnerability, allows unauthorized REST API access to modify system configurations, potentially leading to complete system compromise.
Fortinet FortiNAC CVE-2022-39952 Exploitation Attempt
2 rules 2 TTPsAn attacker attempts to exploit the Fortinet FortiNAC CVE-2022-39952 vulnerability by sending a malicious HTTP POST request to upload a payload, potentially leading to remote code execution.
Gravity Forms Plugin Unauthenticated Stored XSS Vulnerability
2 rules 1 CVEThe Gravity Forms plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting (XSS) in versions up to and including 2.10.0, allowing unauthenticated attackers to inject arbitrary web scripts via form submissions that execute when an administrator views the entry detail page.
Ivanti EPMM Unauthenticated API Access via CVE-2023-35078
2 rules 2 TTPsExploitation of CVE-2023-35078 in Ivanti EPMM allows unauthenticated remote API access, potentially leading to data theft, unauthorized modifications, or further system compromise.
Katana Mirai Variant Targeting Android TV Devices
2 rules 7 TTPsKatana is a Mirai botnet variant that infects Android TV set-top boxes and compiles its own rootkit for persistence and control.
Kubernetes Scanning by Unauthenticated IP Address
2 rules 1 TTPDetects potential scanning activities within a Kubernetes environment by identifying multiple unauthorized access attempts (HTTP 403 responses) from unauthenticated IP addresses in Kubernetes audit logs, potentially indicating vulnerability probing or exploitation attempts.
Linux Auditd Detects Firewall Modification or Disabling
3 rules 1 TTPThe analytic detects suspicious disabling or modification of the system firewall on Linux systems, which can indicate unauthorized access or attempts to maintain control over a system by disabling host protections.