Moonpie
Overview
Executive Summary
Moonpie (sometimes associated with advanced persistent threat toolsets) is a sophisticated Backdoor and remote access trojan (RAT) designed for long-term, stealthy espionage and data exfiltration. Unlike loud "smash and grab" malware, Moonpie is engineered to maintain a covert presence on high-value targets, providing attackers with a persistent, interactive shell into the compromised environment.Infection Vector and Technical Capabilities
Moonpie is typically deployed post-compromise. Threat actors achieve initial access via spear-phishing, exploiting public-facing vulnerabilities, or purchasing access from initial access brokers, and then deploy Moonpie to solidify their hold on the network. Once active, Moonpie exhibits advanced backdoor capabilities:- Covert C2 Communications: Moonpie frequently utilizes encrypted, custom protocols or hides its command-and-control (C2) traffic within legitimate protocols (like HTTPS or DNS tunneling) to evade network intrusion detection systems (NIDS).
- Interactive Shell and File System Access: The backdoor provides the remote operator with full, interactive command-line access. The attacker can silently browse the file system, upload/download files, and execute arbitrary commands with the privileges of the compromised user or system account.
- Evasion and Persistence: Moonpie often employs techniques like DLL side-loading, process hollowing, or rootkit-like API hooking to hide its presence from local task managers and standard antivirus solutions.
Threat Assessment
The discovery of Moonpie indicates a severe, targeted breach. Its presence suggests that a highly capable threat actor has established a persistent foothold and is likely actively engaged in lateral movement, privilege escalation, or the exfiltration of sensitive intellectual property.Incident Response and Remediation
- Immediate IR Activation: A Moonpie infection requires a full-scale Incident Response investigation. Standard remediation (simply deleting the file) is insufficient, as the attackers have likely established multiple fallback persistence mechanisms.
- Network Isolation and Forensic Capture: Isolate the affected host but keep it powered on to capture volatile memory (RAM). Memory forensics is crucial for extracting the decrypted payload, active C2 connections, and potentially identifying lateral movement vectors.
- Enterprise-Wide Credential Reset: Assume all credentials, including domain administrator accounts, have been compromised. Force a global password reset and heavily monitor Active Directory for the creation of unauthorized accounts.
Known aliases
Threat reports may refer to this family under multiple names:
MITRE ATT&CK Techniques
This family has been observed using the following ATT&CK techniques: T1059.003 T1071.001 T1573 T1055
Tactical Mitigations
Based on the techniques used by this family, consider the following defensive strategies:
- T1059.003: Restrict execution of Windows Command Shell (cmd.exe) and block unauthorized batch scripts.
- T1071.001: Implement web filtering and SSL/TLS inspection to detect malicious command and control (C2) traffic hiding in HTTP/HTTPS.
Generated Detections (Boilerplate)
These YARA and Sigma rules are auto-generated based on the family name and aliases. They must be heavily tuned before deployment in a production environment.
YARA Rule
rule MALWARE_WIN_MOONPIE {
meta:
description = "Detects Moonpie (trojan)"
author = "SystemHelpdesk Boilerplate Generator"
date = "2026-07-06"
strings:
$s1 = "moonpie" ascii wide nocase
$s2 = "backdoor.moonpie" ascii wide nocase
$s3 = "apt.moonpie" ascii wide nocase
$s4 = "win32/moonpie" ascii wide nocase
condition:
uint16(0) == 0x5a4d and any of them
}Sigma Rule
title: Suspicious Moonpie Activity
id: 65e5157b5c674970e9249468c3b22928
status: experimental
description: Detects generic indicators of the moonpie malware family.
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
CommandLine|contains:
- "*moonpie*"
- "*backdoor.moonpie*"
- "*apt.moonpie*"
- "*win32/moonpie*"
condition: selection
level: mediumReferences & External Analysis
- Search "moonpie" on VirusTotal (External Analysis)
Frequently Asked Questions
How do I remove the Moonpie Trojan from Windows?
Manual removal of Moonpie is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.
Is Moonpie a virus or a Trojan?
Moonpie is classified as a Trojan. Unlike traditional viruses that infect files, modern malware like Moonpie typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.
What are the main symptoms of a Moonpie infection?
Symptoms of Moonpie can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.
Related Families (Category: trojan)
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Protect Your Network Against Trojans
Want to prevent Moonpie and similar threats from compromising your organization? Read our comprehensive defensive guide: Banking Trojan Protection.
Machine-readable
Get this profile as JSON: https://jordan123234-malware-families-explorer.static.hf.space/api/moonpie.json
Ecosystem & Interactive Environments
This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.