Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,569 views
11,679 detections
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Detects npm packages exhibiting suspicious metadata characteristics, such as disproportionately high download counts relative to package age, or combinations of trust signals that suggest potential supply chain poisoning or typosquatting, specifically targeting packages mimicking legitimate sorted-btree functionality.
Detection of suspicious network traffic directed toward Slack APIs, characterized by the use of hardcoded Slack bot tokens and specific communication patterns associated with the 'indexed-btree' npm malware family, indicating potential C2 communication or data exfiltration.
Detects network traffic associated with the malicious npm package 'indexed-btree', which uses the Telegram Bot API to exfiltrate data. The rules monitor for connections to api.telegram.org via HTTPS and identify specific hardcoded bot tokens and chat IDs associated with the malicious campaign.
This rule detects potential social engineering attacks where an attacker initiates a Microsoft Teams call from an external domain while impersonating an internal IT support or help desk entity. The detection specifically correlates this event with a recent preceding email bombing campaign (exceeding 20 emails) targeting the same user within the last 3 hours, indicating a coordinated attempt to pressure or confuse the victim.
Detects network traffic on non-standard ports (excluding port 443) where the TLS Server Name Indication (SNI) field contains 'dl.google.com'. This pattern is frequently observed as a method for C2 tunneling tools like Xray-core to disguise malicious command and control traffic by masquerading as legitimate Google service traffic.
Detects high-volume mailbox access (exceeding 50 items) performed by a specific API/Client ID pair associated with known mailbox exfiltration tools. This behavior is indicative of unauthorized automated data collection or harvesting from an Office 365 Exchange environment.
Detects DNS queries, TLS SNI headers, or HTTP Host headers containing patterns consistent with IT-support-themed vishing lure domains, specifically 'helpdesk-support-office-#.com'. Such domains are often used to impersonate technical support services to facilitate social engineering, credential harvesting, or malware delivery.
Detects DNS queries and TLS SNI traffic associated with known authentication-themed lure domains often used in phishing campaigns. These domains mimic multi-factor authentication (MFA) registration or SSO setup processes to deceive users into credential theft.
This rule detects the creation of a local user account using the 'net.exe' or 'net1.exe' utility where the command line contains a specific hardcoded password ('Numlock!123'). This pattern is indicative of automated or manual post-exploitation activities, such as creating a back-door account for persistent access.
Detects the execution of s5cmd.exe with command line arguments indicative of data transfer operations (sync, cp, mv, run) to or from an 's3://' URI. s5cmd is a high-performance command-line tool frequently used for parallel S3 operations, which may be leveraged by adversaries for rapid data exfiltration or staging.
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