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Net-Worm.Win32.Mytob.w

Class Net-Worm
Platform Win32
Family Mytob
Full name Net-Worm.Win32.Mytob.w
Examples 19A62015E17FB8E3BFA601A7E97AD731
D933AAAB7A999413D17E0D1D1A39C1F4
B1969DD9DBA6BCE2944E6C02B07D6E66
D5C23950ECFA4DA0A1C011E919BAC328
A1663F9D46EBC70C86B1AD4FDB925112
Updated at 2023-11-25 07:55:44
Tactics &
techniques MITRE*

TA0002 Execution

The adversary is trying to run malicious code.


Execution consists of techniques that result in adversary-controlled code running on a local or remote system. Techniques that run malicious code are often paired with techniques from all other tactics to achieve broader goals, like exploring a network or stealing data. For example, an adversary might use a remote access tool to run a PowerShell script that does Remote System Discovery.


T1204.002 User Execution: Malicious File

An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to open a file that will lead to code execution. This user action will typically be observed as follow-on behavior from Spearphishing Attachment. Adversaries may use several types of files that require a user to execute them, including .doc, .pdf, .xls, .rtf, .scr, .exe, .lnk, .pif, and .cpl.

Adversaries may employ various forms of Masquerading and Obfuscated Files or Information to increase the likelihood that a user will open and successfully execute a malicious file. These methods may include using a familiar naming convention and/or password protecting the file and supplying instructions to a user on how to open it.(Citation: Password Protected Word Docs)

While Malicious File frequently occurs shortly after Initial Access it may occur at other phases of an intrusion, such as when an adversary places a file in a shared directory or on a user's desktop hoping that a user will click on it. This activity may also be seen shortly after Internal Spearphishing.
* © 2024 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
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