Suspicious File Downloaded From Direct IP Via Certutil.EXE
Detects the execution of certutil with certain flags that allow the utility to download files from direct IPs.
Detection logic
Detection requirements
- Platform
- ESXiLinuxmacOSNetwork DevicesWindows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
- Log source product
- windows
- Log source category
- process_creation
Known benign triggers
- Unknown
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| forensicitguy.github.io/agenttesla-vba-certutil-download/ | 3 |
| learn.microsoft.com/en-us/windows-server/administration/windows-commands/certutil | 6 |
| lolbas-project.github.io/lolbas/Binaries/Certutil/ | 6from 2 sources |
| news.sophos.com/en-us/2021/04/13/compromised-exchange-server-hosting-cryptojacker-targeting-other-exchange-servers/ | 4 |
| twitter.com/_JohnHammond/status/1708910264261980634 | Only this detection cites it |
| twitter.com/egre55/status/1087685529016193025 | 4from 2 sources |
| www.hexacorn.com/blog/2020/08/23/certutil-one-more-gui-lolbin | 3 |
From the source
- At source
- Open at source
- Upstream identifier
- 13e6fe51-d478-4c7e-b0f2-6da9b400a829
- Tagged by the source as
- attack.command-and-controlattack.stealth
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1