# T1544_ingress-tool-transfer

> Adversaries may transfer tools or other files from an external system onto a compromised device to facilitate follow-on actions.

- Skill: `cyberstrikeus/t1544-ingress-tool-transfer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/t1544-ingress-tool-transfer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/t1544-ingress-tool-transfer/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/t1544-ingress-tool-transfer

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# T1544 Ingress Tool Transfer

## High-Level Description

Adversaries may transfer tools or other files from an external system onto a compromised device to facilitate follow-on actions. Files may be copied from an external adversary-controlled system through the command and control channel or through alternate protocols with another tool such as FTP.

## Kill Chain Phase

- Command and Control (TA0037)

**Platforms:** Android, iOS

## What to Check

- [ ] Identify if Ingress Tool Transfer technique is applicable to target mobile environment
- [ ] Check Android devices for indicators of Ingress Tool Transfer
- [ ] Check iOS devices for indicators of Ingress Tool Transfer
- [ ] Assess detection coverage (1 detection strategies)

## How to Test

### Identify Attack Surface

Determine if the target mobile environment is susceptible to Ingress Tool Transfer by examining the target platforms (Android, iOS).

### Assess Existing Defenses

Review whether mitigations for T1544 are in place. If defenses are absent or misconfigured, this technique may be exploitable.

## Remediation Guide

No specific mitigations documented for this technique.

## Detection

### Detection of Ingress Tool Transfer

## Risk Assessment

| Finding                                    | Severity | Impact              |
| ------------------------------------------ | -------- | ------------------- |
| Ingress Tool Transfer technique applicable | Low      | Command And Control |

## CWE Categories

| CWE ID  | Title                              |
| ------- | ---------------------------------- |
| CWE-300 | Channel Accessible by Non-Endpoint |

## References

- [MITRE ATT&CK Mobile - T1544](https://attack.mitre.org/techniques/T1544)