Konni
Overview
Executive Summary
Konni is a sophisticated Remote Access Trojan (RAT) and the namesake of the Advanced Persistent Threat (APT) group that wields it. The Konni group (frequently aligned with North Korean state interests) primarily targets geopolitical entities, diplomatic organizations, and targets in South Korea and Russia. The Konni RAT is designed for long-term, stealthy espionage and the exfiltration of highly sensitive strategic documents.Infection Vector and Technical Capabilities
The Konni APT group relies almost exclusively on highly targeted, socially engineered spear-phishing campaigns. These emails contain weaponized Word documents utilizing malicious macros or Exploits (such as CVE-2017-0199) themed around relevant geopolitical events to trick the victim into enabling content. Once the initial dropper executes, the Konni RAT is deployed, exhibiting advanced espionage capabilities:- System Profiling and Data Theft: Konni immediately profiles the compromised system, mapping connected drives, harvesting browser credentials, and systematically archiving specific file types (e.g., `.doc`, `.pdf`, `.txt`) into ZIP or CAB files for exfiltration.
- Advanced Evasion: The RAT employs numerous anti-analysis techniques. It checks for the presence of virtualization (VMware, VirtualBox) or sandbox environments and will terminate execution if detected. It often sideloads malicious DLLs via legitimate, signed Windows executables to bypass EDR.
- C2 Infrastructure: Konni frequently utilizes compromised legitimate websites or free web hosting services as Command and Control (C2) proxies, making network traffic appear benign and complicating network-based detection.
Threat Assessment
A Konni detection is a critical, tier-one security incident indicating a targeted attack by a highly capable, state-sponsored adversary. The primary threat is severe intellectual property theft, geopolitical espionage, and the compromise of highly sensitive communications.Incident Response and Remediation
- Forensic Triage and Containment: Do not immediately wipe the machine. Isolate the endpoint. Incident Response (IR) teams must capture volatile memory (RAM) to analyze the memory-resident modules and extract C2 indicators before they are lost.
- Hunt for Lateral Movement: The presence of Konni implies a targeted breach. A comprehensive enterprise-wide threat hunt must be initiated to identify all compromised assets and secondary backdoors deployed by the APT group.
- Complete Architecture Review: Remediation requires a full rebuild of the compromised endpoints from clean baselines, a complete reset of the Active Directory environment, and a fundamental review of email security and macro execution policies.
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: T1566.001 T1059.003 T1071.001 T1114
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.
- T1566.001: Scan email attachments for malicious macros, scripts, or suspicious archive files.
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_KONNI {
meta:
description = "Detects Konni (trojan)"
author = "SystemHelpdesk Boilerplate Generator"
date = "2026-07-06"
strings:
$s1 = "konni" ascii wide nocase
$s2 = "rat.konni" ascii wide nocase
$s3 = "apt.konni" ascii wide nocase
$s4 = "trojan.win32.konni" ascii wide nocase
condition:
uint16(0) == 0x5a4d and any of them
}Sigma Rule
title: Suspicious Konni Activity
id: 094ed2c8252445d7a4f99f56db7caa0b
status: experimental
description: Detects generic indicators of the konni malware family.
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
CommandLine|contains:
- "*konni*"
- "*rat.konni*"
- "*apt.konni*"
- "*trojan.win32.konni*"
condition: selection
level: mediumReferences & External Analysis
- Search "konni" on VirusTotal (External Analysis)
Frequently Asked Questions
How do I remove the Konni Trojan from Windows?
Manual removal of Konni 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 Konni a virus or a Trojan?
Konni is classified as a Trojan. Unlike traditional viruses that infect files, modern malware like Konni typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.
What are the main symptoms of a Konni infection?
Symptoms of Konni 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)
Explore other malware families in the same category:
Protect Your Network Against Trojans
Want to prevent Konni and similar threats from compromising your organization? Read our comprehensive defensive guide: Banking Trojan Protection.
Machine-readable
Get this profile as JSON: https://jordanricky1604-ship-it.github.io/malware-families-catalog/api/konni.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.