Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,603 views
11,679 detections
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This rule detects suspicious command-line activity where shell interpreters (bash, sh, dash, python) are used to search for or interact with potentially sensitive system files, such as password files or custom indicators of compromise like 'evil_tenant'. The query targets grep, find, ls, and echo commands used to locate or confirm the existence of these sensitive artifacts.
Detects network connections originating from standard web browsers (Chrome, Edge, Brave, Chromium, Opera) to the domain 'perplexity-ai.online', which is indicative of potential command and control or unauthorized data exfiltration activity.
Detects the execution of common Linux administrative, network, and system information gathering commands, often associated with reconnaissance activity by an adversary after gaining shell access.
Detects the execution of known analysis or command-line tools by AnyDesk, a legitimate remote access tool. This pattern is often observed during post-exploitation activities where an attacker uses authorized remote access tools to execute further commands or deploy diagnostic tools on the compromised host.
This rule detects DNS requests initiated by common web browsers (chrome, msedge, brave, chromium) to a known malicious domain 'perplexity-ai.online', which is often indicative of C2 callback activity.
Detects unauthorized attempts to access or interact with the Veeam Backup database, including psql.exe direct queries, PowerShell scripts attempting to decrypt credentials using DPAPI, and encoded PowerShell commands launched from cmd.exe that target the Veeam environment.
Detects the unauthorized installation and execution of cloudflared (a Cloudflare Tunnel binary). This rule monitors for PowerShell-based downloading of the binary, silent installation via msiexec, service installation commands, and cloudflared execution from unexpected parent processes, which are patterns often associated with adversary lateral movement or establishing persistence.
This rule detects the execution of PowerShell commands related to network share discovery (Invoke-ShareFinder, Get-NetShare) and the execution of the SoftPerfect Network Scanner (netscan.exe/netscan64.exe), which are techniques commonly used by adversaries for internal network reconnaissance.
Identifies unauthorized attempts to leverage ssh-add or access the SSH agent socket to dump or forward local developer identities.
Detects unauthorized execution of node.exe by the Flowise process, where a case-insensitive environment variable (node_options) is used to bypass Flowise's security block list. This enables attackers to leverage the --require flag to preload malicious JavaScript code. The detection also monitors for the presence of a 'flowise_marker.txt' file as a secondary indicator.
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