January 2024 (30)
Microsoft Build Engine Executed After Renaming
2 rules 2 TTPsAttackers may rename the Microsoft Build Engine (MSBuild) executable to evade detection and proxy execution of malicious code.
Microsoft CVE-2017-3736 Vulnerability
2 rulesCVE-2017-3736 is a vulnerability tracked by Microsoft, potentially leading to exploitation of affected systems.
Microsoft Defender 'Block at First Seen' Feature Disabled
2 rules 1 TTPAn attacker disables the Microsoft Defender 'Block at First Seen' feature to allow potentially malicious files to execute without initial scrutiny, increasing the risk of malware infection and data compromise.
Microsoft Defender Tampering via Registry Modification
2 rules 2 TTPsAdversaries may disable or tamper with Microsoft Defender features via registry modifications to evade detection and conceal malicious behavior on Windows systems.
Microsoft Excel XLM Macro Remote Code Execution on macOS
3 rulesA logic flaw in Microsoft Excel allows remote code execution on macOS via malicious XLM macros in SYLK files, bypassing the 'Disable all macros without notification' setting.
Microsoft HPC Pack Deserialization Vulnerability (CVE-2026-32184)
2 rules 1 TTP 1 CVECVE-2026-32184 allows an authorized local attacker to elevate privileges on a Microsoft High Performance Compute Pack (HPC) system through deserialization of untrusted data.
Microsoft Office Use-After-Free Vulnerability CVE-2026-32190
2 rules 3 TTPs 1 CVECVE-2026-32190 is a use-after-free vulnerability in Microsoft Office that allows an unauthorized attacker to execute code locally.
Microsoft QUIC Remote Elevation of Privilege Vulnerability (CVE-2026-32179)
2 rules 1 TTPCVE-2026-32179 is a critical remote elevation of privilege vulnerability in Microsoft QUIC caused by improper input validation during ACK frame decoding, potentially allowing an attacker to gain elevated privileges over the network.
Microsoft Word RTF Heap Overflow Vulnerability (CVE-2023-21716)
2 rules 1 TTP 1 CVECVE-2023-21716 is a critical heap-based buffer overflow vulnerability in Microsoft Word 2016's RTF parser, triggered by a malformed RTF file, leading to remote code execution on Windows 7.
MindsDB Path Traversal Vulnerability Leading to Remote Code Execution
3 rules 2 TTPs 1 CVEA path traversal vulnerability in MindsDB versions prior to 25.9.1.1 allows an attacker to achieve remote code execution by uploading a malicious payload and triggering its execution.
MiroFish Command Injection Vulnerability (CVE-2026-7058)
2 rules 1 TTP 1 CVEA command injection vulnerability exists in 666ghj MiroFish version 0.1.2 via the SimulationIPCClient.send_command function, allowing remote attackers to execute arbitrary commands.
MoreConvert Pro WordPress Plugin Authentication Bypass Vulnerability
2 rules 1 TTP 1 CVEThe MoreConvert Pro plugin for WordPress versions 1.9.14 and earlier is vulnerable to authentication bypass due to improper handling of guest waitlist verification tokens, allowing unauthenticated attackers to potentially gain administrative access.
Mozilla Firefox and Thunderbird Improper Boundary Condition Vulnerability (CVE-2026-4699)
2 rules 1 TTPCVE-2026-4699 describes an improper check for unusual or exceptional conditions in the Layout: Text and Fonts component of Mozilla Firefox and Thunderbird leading to a potential denial-of-service.
MpCmdRun Execution with RemoveDefinitions Argument
2 rulesThe execution of MpCmdRun.exe with the '-RemoveDefinitions' argument, used to remove definitions from the Windows Malware Protection Engine, can indicate potential malware activity or attempts to bypass security measures.
MSBuild Executed by Scripting Host
2 rules 1 TTPDetects the suspicious spawning of MSBuild.exe by Windows Script Host processes (cscript.exe or wscript.exe), a behavior often associated with malware executing malicious MSBuild processes via scripts.
Mshta Making Network Connections Indicative of Defense Evasion
2 rules 1 TTPMshta.exe making outbound network connections may indicate adversarial activity, as it is often used to execute malicious scripts and evade detection by proxying execution of untrusted code.
MSSQL xp_cmdshell Stored Procedure Abuse for Persistence
2 rules 2 TTPsAttackers may leverage the xp_cmdshell stored procedure in Microsoft SQL Server to execute arbitrary commands for privilege escalation and persistence, often bypassing default security configurations.
MuddyWater PowGoop Beacon Decoding Detection
2 rules 4 TTPsThis detection identifies a DLL decoding and executing the PowGoop config.txt payload, indicating a stage in the MuddyWater infection chain where an obfuscated PowerShell beacon is unwrapped and live C2 communication starts.
Multiple Alerts in Same ATT&CK Tactic by Host
2 rules 4 TTPsThis rule correlates multiple security alerts associated with the same ATT&CK tactic on a single host within a defined time window, helping to identify hosts exhibiting concentrated malicious behavior indicative of an active intrusion or post-compromise activity, focusing on Credential Access, Defense Evasion, Execution, and Command and Control tactics.
Multiple Cloud Secrets Accessed by Source Address
2 rules 1 TTPA single source IP accessing secret-management APIs across multiple cloud providers (AWS, GCP, Azure) and Kubernetes clusters within a short timeframe indicates credential theft or token replay for secret harvesting.
Multiple Remote Management Tool Vendors on Same Host
2 rulesThis rule identifies Windows hosts where two or more distinct remote monitoring and management (RMM) or remote-access tool vendors are observed starting processes within the same eight-minute window, potentially indicating compromise, shadow IT, or attacker staging of redundant access.
Mustang Panda USB-Borne Tool Execution
2 rules 3 TTPsThis brief details detection of executables associated with Mustang Panda being launched from non-standard locations, potentially indicating compromise via USB or other removable media.
n8n Credential Authorization Bypass in dynamic-node-parameters Allows Foreign API Key Replay
2 rules 1 TTPA credential authorization bypass vulnerability in n8n versions before 2.18.0 allows an authenticated user with access to a shared workflow to supply a foreign credential ID, causing the backend to decrypt and use that credential against attacker-controlled infrastructure, leading to API key exfiltration.
n8n-mcp Authenticated SSRF Vulnerability
2 rules 1 TTP 4 IOCsAn authenticated server-side request forgery (SSRF) vulnerability affects the webhook trigger tools and the n8n API client in n8n-mcp versions 2.18.7 to before 2.50.2, allowing attackers to make HTTP requests from the n8n-mcp host to internal services and cloud metadata endpoints, potentially leading to credential theft and internal service enumeration.
NATS Server Pre-Authentication Denial-of-Service via Leafnode Handling
2 rules 1 TTPA pre-authentication denial-of-service vulnerability exists in NATS servers before versions v2.12.6 and v2.11.15, allowing a remote client connected to the leafnode port to crash the server by sending a malformed message.
Neko Authenticated User Privilege Escalation (CVE-2026-39386)
2 rules 1 TTP 1 CVEAn authenticated user can escalate privileges to full administrative control in Neko versions 3.0.0 through 3.0.10 and 3.1.0 through 3.1.1 due to CVE-2026-39386, leading to complete compromise of the instance.
Netty HTTP/3 QPACK Literal Unbounded Allocation Vulnerability
3 rules 1 TTPA vulnerability in Netty's HTTP/3 QPACK decoder allows an attacker to cause a denial of service by sending a crafted HTTP/3 header that triggers excessive memory allocation, leading to a server crash.
Network Connections from Processes in Suspicious Windows Directories
2 rules 1 TTPDetection of network connections originating from processes running within suspicious Windows directories, indicating potential malware execution and command-and-control activity.
Network Logon Provider Registry Modification
2 rules 2 TTPsAdversaries may modify the network logon provider registry to register a rogue network logon provider module for persistence and credential access by intercepting authentication credentials in clear text during user logon.
New ActiveSync Allowed Device Added via PowerShell
2 rules 3 TTPsThe rule detects the use of the Exchange PowerShell cmdlet, Set-CASMailbox, to add a new ActiveSync allowed device, potentially allowing attackers to gain persistent access to sensitive email data by adding unauthorized devices.