January 2024 (30)
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.
New Publicly Accessible S3 Bucket Detection
2 rules 1 TTPThis brief focuses on detecting the creation of new, publicly accessible Amazon S3 buckets, potentially indicating misconfigured security settings or malicious intent to expose data.
Newly Observed High Severity Detection Alert in Elastic SIEM
3 rulesThis rule detects newly observed, low-frequency, high-severity Elastic SIEM detection alerts affecting a single agent, helping prioritize triage and response by highlighting alerts tied to specific detection rules that have not been seen previously for the host.
Nginx-UI Unauthenticated Bootstrap Takeover
2 rules 1 TTP 1 IOCNginx-UI version 2.3.5 is vulnerable to an unauthenticated takeover via the `/api/install` endpoint during the initial setup window, allowing a remote attacker to claim administrative control of a fresh instance.
Nhost Account Takeover via OAuth Email Verification Bypass
2 rules 1 TTPNhost is vulnerable to account takeover due to improper OAuth email verification in Discord, Bitbucket, AzureAD, and EntraID providers, allowing attackers to merge an unverified OAuth identity into a victim's account.
No Threat Data Found
2 rulesThe provided document is a placeholder and does not contain any threat-related information, IOCs, or attack techniques.
NocoBase SQL Injection via Recursive Eager Loading
2 rules 4 TTPsNocoBase versions 2.0.32 and earlier are vulnerable to SQL injection due to string concatenation in the `queryParentSQL()` function, allowing attackers with record creation permissions to inject arbitrary SQL and potentially extract sensitive information or execute commands.
Non-Chrome Process Accessing Chrome Login Data
2 rules 1 TTPThis analytic identifies non-Chrome processes accessing the Chrome user data file 'login data', an SQLite database containing sensitive information like saved passwords, potentially indicating credential theft attempts.
Non-Chrome Process Accessing Chrome Login Data
2 rules 1 TTPThis analytic identifies non-Chrome processes accessing the Chrome user data file 'login data', which is an SQLite database containing sensitive information like saved passwords, potentially leading to credential theft.
NorthStar C2 Agent Execution Detection
2 rules 3 TTPs 2 IOCsThis brief details detection strategies for NorthStar C2 agent execution on Windows endpoints, an open-source command and control framework used for penetration testing and red teaming.
Note Mark OIDC Authentication Bypass via Hardcoded Password
2 rules 1 TTPA critical authentication bypass vulnerability in note-mark allows attackers to authenticate as any OIDC-registered user by submitting the password 'null' to the internal login endpoint due to a hardcoded bcrypt hash fallback, potentially leading to account takeover and persistent access.
Notepad++ Updater Querying Uncommon Domains
2 rules 2 TTPsThe Notepad++ updater, gup.exe, makes DNS queries to domains not part of the legitimate update infrastructure, potentially indicating updater mechanism exploitation or suspicious network activity.
NTDS or SAM Database File Copied
2 rules 2 TTPsDetects copy operations of the Active Directory Domain Database (ntds.dit) or Security Account Manager (SAM) files using command-line tools, potentially leading to credential access.
NullSessionPipe Registry Modification for Lateral Movement
3 rules 2 TTPsAttackers modify the NullSessionPipe registry setting in Windows to enable anonymous access to named pipes, potentially facilitating lateral movement and unauthorized access to network resources.
O365 Add App Role Assignment Grant User
2 rules 1 TTPThis analytic detects the addition of an application role assignment grant to a user in Office 365, which can indicate unauthorized privilege escalation or the assignment of sensitive roles, leading to unauthorized access within the Office 365 environment.
O365 Advanced Audit Disabled
2 rules 1 TTPThe O365 Advanced Audit feature provides critical logging and insights into user and administrator activities, and this analytic detects instances where it is disabled for a specific user, potentially blinding security teams to malicious actions.
O365 Application Available To Other Tenants
2 rules 1 TTPAn Azure Active Directory Application is configured to allow authentication from external tenants or personal accounts, potentially leading to unauthorized access to data or capabilities.
O365 Application Registration Owner Added
3 rules 1 TTPA new owner added to an O365 application registration can grant significant control, potentially leading to unauthorized data access, privilege escalation, or malicious behavior.
O365 ApplicationImpersonation Role Assigned
2 rules 2 TTPsDetection of the ApplicationImpersonation role being assigned in Office 365, potentially leading to unauthorized mailbox access and impersonation.
O365 BEC Email Hiding Rule Creation
2 rules 2 TTPsThis analytic detects suspicious Office 365 mailbox rule creation, a common technique used in Business Email Compromise (BEC), by scoring rule attributes like short names, marking emails as read, and moving emails to specific folders.
O365 Compliance Content Search Activity Detected
2 rules 1 TTPDetection of content search initiation within the Office 365 Security and Compliance Center using the SearchCreated operation, which may signal unauthorized access to sensitive organizational data such as emails and documents, potentially leading to data exfiltration and compliance breaches.