offensive-anti-forensics SKILL.md skillA
offensive-anti-forensics from miosa-osa/osa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add miosa-osa/osa/offensive-anti-forensics@git:20260913.e13b6b8Pins git:20260913.e13b6b8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- miosa-osa/osa
- Path
priv/skills/offensive-anti-forensics/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260913.e13b6b8, committed Sep 13, 2026
- Size
- 20,472 bytes
- Repository stars
- 78
- License
- Apache-2.0
Anti-forensics and evidence destruction techniques for red team operators conducting authorized engagements. Covers log clearing on Windows (wevtutil, Clear-EventLog, ETW provider patching) and Linux (journal truncation, utmp/wtmp binary editing, syslog manipulation), timestamp manipulation via Timestomp and SetMACE to defeat timeline analysis, filesystem-level anti-forensics including NTFS Alternate Data Streams for payload hiding and secure deletion with sdelete/shred, memory artifact…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Offensive Anti-Forensics Anti-forensics is the practice of manipulating, destroying, or preventing the creation of forensic artifacts during an engagement. As a red team operator, you treat every action as generating evidence -- logs, timestamps, memory structures, disk metadata, and network captures all tell a story. Your objective is to control that narrative. This skill covers the primary evidence categories you encounter on Windows and Linux targets, the techniques for manipulating each, and the defender view so you understand what a competent forensic analyst looks for when your cleanup is incomplete. You operate under an authorization scope. Every technique here assumes you have written permission to execute these actions on target systems. Document what you clear and when -- your engagement report must account for artifacts you destroyed so the blue team can rebuild their detection baseline. ## Quick Workflow 1. Enumerate logging infrastructure before executing payloads -- identify what generates evidence. 2. Disable or blind telemetry sources (ETW, Sysmon, auditd) at the earliest safe opportunity. …
Read the whole file at its exact version.
How to install
mdr add miosa-osa/osa/offensive-anti-forensics@sha256:b986f7770843389aThe line at the top of this page pins the label git:20260913.e13b6b8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mtqiow2657wf6heh)
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Versions
The registry has recorded 1 version of this file, committed on Sep 13, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (20472 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
miosa-osa/osa · 78 stars · license Apache-2.0 · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mtqiow2657wf6heh GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-anti-forensics GET https://markdownregistry.com/api/v1/blob/b986f7770843389aceffff35c000b3d157f6560046a2b94111a06c158659be29
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.