Detectionmediumtest
Insecure Proxy/DOH Transfer Via Curl.EXE
Detects execution of "curl.exe" with the "insecure" flag over proxy or DOH.
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Nasreddine Bencherchali (Nextron Systems)Created Thu Jul 272c1486f5-02e8-4f86-9099-b97f2da4ed77windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection_img:
- Image|endswith: '\curl.exe'
- OriginalFileName: 'curl.exe'
selection_cli:
CommandLine|contains:
- '--doh-insecure'
- '--proxy-insecure'
condition: all of selection_*False Positives
Access to badly maintained internal or development systems
References
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
2c1486f5-02e8-4f86-9099-b97f2da4ed77
Status
test
Level
medium
Type
Detection
Created
Thu Jul 27
Path
rules/windows/process_creation/proc_creation_win_curl_insecure_proxy_or_doh.yml
Raw Tags
attack.execution