Detectionhightest
PUA - 3Proxy Execution
Detects the use of 3proxy, a tiny free proxy server
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Launch
Florian Roth (Nextron Systems)Created Tue Sep 13Updated Tue Feb 21f38a82d2-fba3-4781-b549-525efbec8506windows
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 Logic3 selectors
detection:
selection_img:
Image|endswith: '\3proxy.exe'
selection_pe:
Description: '3proxy - tiny proxy server'
selection_params: # param combos seen in the wild
CommandLine|contains: '.exe -i127.0.0.1 -p'
condition: 1 of selection_*False Positives
Administrative activity
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
f38a82d2-fba3-4781-b549-525efbec8506
Status
test
Level
high
Type
Detection
Created
Tue Sep 13
Modified
Tue Feb 21
Path
rules/windows/process_creation/proc_creation_win_pua_3proxy_execution.yml
Raw Tags
attack.command-and-controlattack.t1572