May 2024 (12)
AWS Bedrock GuardRails Deletion Attempt
2 rules 1 TTPDetection of attempts to delete AWS Bedrock GuardRails, security controls that prevent harmful AI outputs, via the DeleteGuardrail API in AWS CloudTrail logs, potentially indicating an adversary attempting to remove these safeguards after compromising credentials to manipulate model behavior for malicious purposes.
AWS IAM Roles Anywhere Trust Anchor Created with External CA
2 rules 2 TTPsThe creation of an AWS IAM Roles Anywhere Trust Anchor using an external Certificate Authority (CA) instead of an AWS-managed CA allows adversaries to establish persistent access by using their own CA to sign certificates for authentication.
AWS Lambda Layer Added to Existing Function
2 rules 2 TTPsDetection of a Lambda layer being added to an existing AWS Lambda function, potentially indicating malicious activity such as persistence, unauthorized code execution, or data interception by an attacker with the ability to modify function configurations.
AWS S3 Bucket Enumeration and Brute Force Attempts
2 rules 4 TTPsA high number of failed S3 operations (AccessDenied errors) against a single bucket from a single source address within a short timeframe can indicate attempts to enumerate bucket objects, brute-force object keys, or inflate AWS billing.
AWS S3 Bucket Policy Modified to Share with External Account
2 rules 3 TTPsAn attacker modifies an Amazon S3 bucket policy to grant access to an external AWS account, potentially leading to unauthorized data access and exfiltration.
AWS Systems Manager SecureString Parameter Request with Decryption Flag
2 rules 1 TTPThis rule detects when an AWS resource accesses SecureString parameters within AWS Systems Manager (SSM) with the decryption flag set to true, potentially indicating credential access.
GCP Pub/Sub Subscription Creation
2 rules 2 TTPsThis rule detects the creation of a subscription in Google Cloud Platform (GCP) Pub/Sub, which could indicate unauthorized access to data streams by adversaries attempting to intercept or exfiltrate sensitive information.
Okta Admin Console Unusual Behavior Detection
2 rules 4 TTPsThis brief details detection of anomalous activity within the Okta Admin Console, potentially indicating privilege escalation, persistence, defense evasion, or initial access attempts by malicious actors.
Potential Data Exfiltration to Unusual Geographic Region via Machine Learning
2 rules 1 TTPA machine learning job has detected potential data exfiltration activity to an unusual geographical region, specifically by region name, indicating exfiltration over command and control channels.
Redis Vulnerabilities Allow Local Code Execution
2 rules 1 TTPA local attacker can exploit multiple unspecified vulnerabilities in Redis to achieve arbitrary code execution on the host system.
OpenClaw Sandbox Media Root Bypass via Unnormalized mediaUrl/fileUrl Parameter Keys
2 rules 2 TTPsA path traversal vulnerability in OpenClaw allows sandboxed agents to read arbitrary files from other agents' workspaces by exploiting unnormalized `mediaUrl` or `fileUrl` parameter keys, leading to potential exposure of sensitive data like API keys and session information.
Suspicious Execution from INetCache Folder
2 rules 3 TTPs 1 CVEThe rule detects suspicious execution of processes from the INetCache folder, often indicative of malicious payloads delivered via WININET, potentially signaling initial access or command and control activity.
April 2024 (17)
Unusual Remote File Size Indicating Lateral Movement
2 rules 3 TTPsA machine learning job has detected an unusually high file size shared by a remote host, indicating potential lateral movement as attackers bundle data into a single large file transfer to evade detection when exfiltrating valuable information.
Grafana Privilege Escalation Vulnerability
2 rules 1 TTPA remote, authenticated attacker can exploit a vulnerability in Grafana to escalate privileges.
Azure AD Certificate-Based Authentication Enabled
2 rules 1 TTPEnabling certificate-based authentication (CBA) in Azure Active Directory can be abused by attackers to establish persistence, escalate privileges, and impair defenses.
Bitbucket Global Secret Scanning Rule Deletion
2 rules 1 TTPAn adversary with administrative privileges may delete global secret scanning rules in Bitbucket to impair defenses and exfiltrate sensitive data without detection.
AWS S3 Bucket Expiration Lifecycle Configuration Added for Defense Evasion
2 rules 3 TTPsAn adversary may add an expiration lifecycle configuration to an Amazon S3 bucket to automatically delete logs, forensic evidence, or sensitive objects, detected via the PutBucketLifecycle or PutBucketLifecycleConfiguration APIs with Expiration parameters.
Bitbucket Project Secret Scanning Allowlist Added
2 rulesAn adversary may impair defenses by adding a secret scanning allowlist rule for Bitbucket projects, potentially allowing secrets to be committed and exposed.
Bitbucket Repository Exempted from Secret Scanning
2 rules 1 TTPAn attacker may attempt to disable or bypass secret scanning on a Bitbucket repository to avoid detection of committed secrets, potentially leading to credential compromise and subsequent unauthorized access.
ConnectWise ScreenConnect Path Traversal Vulnerability (CVE-2024-1708)
2 rules 1 TTP 1 CVECVE-2024-1708 is a path traversal vulnerability in ConnectWise ScreenConnect that could allow an attacker to execute remote code or directly impact confidential data and critical systems.
Dell Wyse Management Suite Unauthenticated Remote Code Execution
2 rules 4 TTPsAn unauthenticated remote code execution (RCE) vulnerability exists in Dell Wyse Management Suite, allowing attackers to execute arbitrary code without authentication.
Detection of System Control Panel Item Load from Uncommon Locations
2 rules 3 TTPsThis brief focuses on detecting the loading of system control panel items (.cpl) from unusual locations, potentially indicating DLL sideloading or other exploitation techniques by threat actors to achieve defense evasion, persistence, and privilege escalation on Windows systems.
GitHub Push Protection Bypass Detection
2 rulesDetection of a GitHub user bypassing push protection, potentially leading to the exposure of secrets.
JetBrains TeamCity Relative Path Traversal Vulnerability (CVE-2024-27199)
2 rules 1 TTP 1 CVEA relative path traversal vulnerability in JetBrains TeamCity (CVE-2024-27199) could allow limited administrative actions and has been linked to ransomware attacks.
Microsoft Sentinel Unified RBAC and Row-Level Access Support
2 rules 1 IOCMicrosoft announced unified role-based access control (RBAC) with row-level access in Microsoft Sentinel, enhancing security management and access control.
Potential Abuse of AWS Console GetSigninToken
2 rules 2 TTPsAdversaries may abuse the AWS GetSigninToken API to create temporary federated credentials for obfuscating compromised AWS access keys and pivoting to console sessions without MFA, potentially leading to lateral movement within the AWS environment.
AWS SSM Session Started to EC2 Instance for Lateral Movement
2 rules 1 TTPAn AWS user or role establishing a session via SSM to an EC2 instance may indicate lateral movement, and this rule detects the first occurrence of such an event.
WSO2 Products Vulnerable to XML External Entity (XXE) Injection via CVE-2024-2374
2 rules 2 TTPsCVE-2024-2374 describes an XML External Entity (XXE) vulnerability in multiple WSO2 products, where improperly configured XML parsers allow attackers to inject malicious XML payloads to include external resources, leading to confidential file access, limited HTTP resource access, and denial-of-service attacks.
AWS EC2 User Data Retrieval for EC2 Instance
2 rules 2 TTPsDetection of the AWS EC2 DescribeInstanceAttribute API call to retrieve the userData attribute, potentially exposing sensitive information like credentials or configuration details.