January 2024 (30)
CVE-2026-32083 Windows SSDP Service Race Condition Privilege Escalation
1 rule 1 TTP 1 CVECVE-2026-32083 is a race condition vulnerability in the Windows SSDP Service that allows an authorized local attacker to elevate privileges.
CVE-2026-32086 Function Discovery Service Race Condition Privilege Escalation
2 rules 1 TTP 1 CVECVE-2026-32086 is a race condition vulnerability in the Function Discovery Service (fdwsd.dll) that allows an authorized local attacker to elevate privileges on a Windows system.
CVE-2026-32089 Use-After-Free in Windows Speech Brokered API for Privilege Escalation
2 rules 1 TTP 1 CVECVE-2026-32089 is a use-after-free vulnerability in the Windows Speech Brokered API that allows a local attacker to elevate privileges on a vulnerable system.
CVE-2026-32093 Function Discovery Service Race Condition Privilege Escalation
2 rules 1 TTP 1 CVEA race condition vulnerability in the Function Discovery Service (fdwsd.dll), tracked as CVE-2026-32093, allows a locally authorized attacker to escalate privileges on a vulnerable Windows system.
CVE-2026-7337 Type Confusion Vulnerability in Chromium V8 Engine
2 rules 1 TTP 1 CVECVE-2026-7337 is a type confusion vulnerability in the V8 JavaScript engine that affects Google Chrome and Microsoft Edge (Chromium-based).
D-Link DI-8100 Remote Buffer Overflow Vulnerability (CVE-2026-7853)
2 rules 1 TTP 1 CVED-Link DI-8100 version 16.07.26A1 is vulnerable to a remote buffer overflow in the `sprintf` function within the `/auto_reboot.asp` file's HTTP handler component due to improper handling of the `enable/time` argument, potentially leading to arbitrary code execution.
Decidim Amendment Acceptance Vulnerability
2 rules 1 TTPAn authentication bypass vulnerability in Decidim allows any registered user to accept or reject amendments, potentially granting them co-author status on affected proposals; versions 0.19.0 through 0.30.5 and 0.31.0.rc1 through 0.31.1 are affected.
Deletion of Critical Scheduled Tasks
2 rules 1 TTPAdversaries delete critical scheduled tasks, such as those related to BitLocker, ExploitGuard, System Restore, Windows Defender, and Windows Update, to disrupt security measures and enable data destruction.
Denial of Service Vulnerability in marked via Infinite Recursion
2 rules 1 TTPA denial of service vulnerability exists in marked version 18.0.0 due to infinite recursion when processing a specific 3-byte sequence (tab, vertical tab, and newline), leading to unbounded memory allocation and application crash.
Detect AWS Access Key Creation
2 rules 1 TTPThis brief outlines how to detect the creation of AWS Access Keys, a common tactic used by attackers to establish persistence and escalate privileges within compromised AWS environments.
Detect Suspicious WMI Event Subscription Creation for Persistence
2 rules 1 TTPThis threat brief details the detection of malicious Windows Management Instrumentation (WMI) event subscriptions, a technique used by attackers for persistence and privilege escalation on Windows systems.
Detect Windows Downdate Registry Activity
2 rules 2 TTPsThis detection identifies registry modifications associated with the Windows Downdate attack, specifically focusing on pending.xml file modifications outside standard locations, which could force a Windows downgrade for exploitation.
Detect Windows Netspy Network Scanner Execution
2 rules 2 TTPsThe Netspy network scanner, a tool for internal network discovery, is executed on a Windows endpoint to enumerate active hosts and services, potentially for reconnaissance purposes.
Detecting Disabling of Windows Defender Sample Submission
2 rulesAn attacker modifies the Windows registry to disable the Windows Defender Submit Samples Consent feature, preventing the submission of suspicious files for analysis, and potentially evading detection.
Detecting Persistence via Parsing macOS Login Item Files
2 rules 1 TTPThis brief details a method for parsing macOS login item files to detect persistence mechanisms employed by malware or threat actors.
Detecting Spikes in Active Directory Object Modifications
2 rules 1 TTPThis detection identifies a spike in Active Directory group or object modifications, potentially indicating unauthorized access, defense impairment, or persistence establishment by threat actors.
Detecting Windows LAPS Password Gathering via PowerShell
2 rules 2 TTPsThis brief outlines detection strategies for adversaries attempting to retrieve LAPS passwords using PowerShell and the 'ms-Mcs-AdmPwd' property, potentially leading to lateral movement and privilege escalation within a Windows domain.
Detecting Windows Raw Access to Master Boot Record
2 rules 1 TTPThis analytic detects suspicious raw access reads to the drive containing the Master Boot Record (MBR) using Sysmon EventCode 9, which is a common tactic used by attackers to wipe, encrypt, or overwrite the MBR as part of their impact payload.
Detecting Windows Screen Capture via PowerShell Script
2 rules 1 TTPThis analytic detects the execution of a PowerShell script designed to capture screen images on a host, leveraging PowerShell Script Block Logging to identify specific script block text patterns associated with screen capture activities, potentially indicating an attempt to exfiltrate sensitive information via desktop screenshots.
Detecting WMIC Systeminfo Discovery Activity
2 rules 1 TTPThis brief covers detection of adversaries using Windows Management Instrumentation Command-line (WMIC) to gather system information, specifically the `computersystem` class, a technique used for reconnaissance.
Detection of Abnormally Large DNS Responses Indicative of CVE-2020-1350 Exploitation
2 rules 2 TTPsThis rule detects abnormally large DNS responses indicative of exploitation attempts targeting a known overflow vulnerability (CVE-2020-1350) in Windows DNS servers, potentially leading to Remote Code Execution (RCE) or Denial of Service (DoS).
Detection of Attacker Tools on Endpoints
2 rules 3 TTPsThis analytic detects the execution of attacker tools used for unauthorized access, network scanning, privilege escalation, password dumping, or data exfiltration, based on process activity data from EDR agents and focusing on known attacker tool names.
Detection of Azure Storage Utility Execution via Command Line Interface
2 rules 1 TTPAdversaries may leverage Azure Storage utilities like AzCopy and Storage Explorer post-compromise to stage or extract sensitive data from endpoints, blending malicious activity with legitimate cloud traffic.
Detection of Default Cobalt Strike PowerShell Beacon
2 rules 2 TTPsThis brief outlines detection strategies for default Cobalt Strike PowerShell beacons, which are used for command and control, by identifying specific function and variable names within PowerShell script block logs.
Detection of Encrypted Archive Creation with WinRAR or 7-Zip
2 rules 2 TTPsAdversaries use WinRAR or 7-Zip with encryption options to compress and protect stolen data before exfiltration, making detection more challenging.
Detection of ETW Disabling via Registry Modification
2 rulesAttackers may disable Event Tracing for Windows (ETW) by modifying specific registry keys to evade detection and hinder security monitoring, potentially leading to further system compromise.
Detection of Failed ESXi File Downloads
2 rules 2 TTPsThis detection identifies failed file download attempts on ESXi hosts by looking for specific error messages in system logs, potentially indicating unauthorized attempts to install malicious components or scripts.
Detection of Hidden Encoded Executables via Registry Modification
3 rules 3 TTPsAttackers can hide and execute malicious code by storing it in encoded form within the Windows Registry and then executing it, evading traditional file-based detection mechanisms.
Detection of Important Scheduled Task Deletion or Disablement
2 rules 1 TTPAdversaries delete or disable critical scheduled tasks, such as those related to system restore, Windows Defender, BitLocker, Windows Backup, or Windows Update, to disrupt operations and potentially conduct data destructive activities.
Detection of Obfuscated IP Addresses via Command Line Tools
3 rules 1 TTPThe use of command-line tools like ping.exe or arp.exe with obfuscated IP addresses (hex, octal, etc.) in the command line can indicate reconnaissance activity or attempts to evade security controls by masking the true destination.