---
type: "term"
title: "Trojan"
description: "Malware disguised as legitimate software to trick users into installing it."
resource: "tlctc:term:trojan"
tags:
  - "glossary"
---
# Trojan

Malware disguised as legitimate software to trick users into installing it. In TLCTC: the execution of the trojan maps to `#7 Malware` (foreign code running via designed execution capability). The deception that leads to installation typically involves `#9 Social Engineering` (tricking the user). Full sequence: `#9 → #7`. The trojan may then perform various malicious actions that map to additional clusters (e.g., credential stealing → `#4`, data exfiltration → `[DRE: C]`).

**Reference:** V1.9.1 Buzz-Word Refinement (#7)

See also: Malware (#7), Social Engineering (#9)