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Trojan-Downloader.Win32.Harnig.bb

Class Trojan-Downloader
Platform Win32
Family Harnig
Full name Trojan-Downloader.Win32.Harnig.bb
Examples 2E825C17F267493A37E5724A1FFF2E90
DAE04C02FCB74AC20DB5F60D364A9D65
FCBAC4F8057C55C052B429759952BEFE
9968C58E378E0755A5D2A6642D8D70EB
129549C68674EAFEAB391C55766F3478
Updated at 2023-12-31 01:03:03
Tactics &
techniques MITRE*

TA0011 Command and Control

The adversary is trying to communicate with compromised systems to control them.


Command and Control consists of techniques that adversaries may use to communicate with systems under their control within a victim network. Adversaries commonly attempt to mimic normal, expected traffic to avoid detection. There are many ways an adversary can establish command and control with various levels of stealth depending on the victim’s network structure and defenses.


T1071.001 Application Layer Protocol: Web Protocols

Adversaries may communicate using application layer protocols associated with web traffic to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.

Protocols such as HTTP/S(Citation: CrowdStrike Putter Panda) and WebSocket(Citation: Brazking-Websockets) that carry web traffic may be very common in environments. HTTP/S packets have many fields and headers in which data can be concealed. An adversary may abuse these protocols to communicate with systems under their control within a victim network while also mimicking normal, expected traffic.
* © 2024 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
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