# T1588.001_malware

> Adversaries may buy, steal, or download malware that can be used during targeting.

- Skill: `cyberstrikeus/t1588-001-malware` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/t1588-001-malware`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/t1588-001-malware/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/t1588-001-malware

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# T1588.001 Malware

> **Sub-technique of:** T1588

## High-Level Description

Adversaries may buy, steal, or download malware that can be used during targeting. Malicious software can include payloads, droppers, post-compromise tools, backdoors, packers, and C2 protocols. Adversaries may acquire malware to support their operations, obtaining a means for maintaining control of remote machines, evading defenses, and executing post-compromise behaviors.

In addition to downloading free malware from the internet, adversaries may purchase these capabilities from third-party entities. Third-party entities can include technology companies that specialize in malware development, criminal marketplaces (including Malware-as-a-Service, or MaaS), or from individuals. In addition to purchasing malware, adversaries may steal and repurpose malware from third-party entities (including other adversaries).

## Kill Chain Phase

- Resource Development (TA0042)

**Platforms:** PRE

## What to Check

- [ ] Identify if Malware technique is applicable to target environment
- [ ] Check PRE systems for indicators of Malware
- [ ] Verify mitigations are bypassed or absent (1 known mitigations)
- [ ] Assess detection coverage (1 detection strategies)

## How to Test

### Manual Testing

1. **Identify Attack Surface**: Determine if the target environment is susceptible to Malware by examining the target platforms (PRE).

2. **Assess Existing Defenses**: Review whether mitigations for T1588.001 are in place. If defenses are absent or misconfigured, this technique may be exploitable.

3. **Execute Test**: Use tools and methods described in the MITRE ATT&CK page and external references below.

> **Note**: No Atomic Red Team tests available for this technique. See [Atomic Red Team GitHub](https://github.com/redcanaryco/atomic-red-team) for updates.

## Remediation Guide

### M1056 Pre-compromise

This technique cannot be easily mitigated with preventive controls since it is based on behaviors performed outside of the scope of enterprise defenses and controls.

## Detection

### Detection of Malware

## Risk Assessment

| Finding                      | Severity | Impact               |
| ---------------------------- | -------- | -------------------- |
| Malware technique applicable | High     | Resource Development |

## CWE Categories

| CWE ID | Title                 |
| ------ | --------------------- |
| N/A    | No direct CWE mapping |

## References

- [FireEyeSupplyChain](https://www.mandiant.com/resources/supply-chain-analysis-from-quartermaster-to-sunshop)
- [Atomic Red Team - T1588.001](https://github.com/redcanaryco/atomic-red-team/tree/master/atomics/T1588.001)
- [MITRE ATT&CK - T1588.001](https://attack.mitre.org/techniques/T1588/001)