Update Date
02/10/2024

Class: RiskTool

Programs in this category have a number of functions (such as concealing files in the system, hiding windows running applications, terminating active processes, etc.) which can be used with malicious intent. They are, in themselves, not malicious. Unlike programs classified as NetTool, RiskTool programs are designed to operate on the local computer. If a user has installed such a program on his/her computer, or if it was installed by a system administrator, then it does not pose any threat.

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Platform: Win32

Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.

Family: RiskTool.Win32.FlyStudio.dcft

No family description

Examples

A1D3FE8E834A565EA10CD4027526C3E6
BCF36F49D1724370000D819D03730A18
FB545AA240EA5256CECD643ED1C28CFB
27326AEF1BACC30A27556600DCF71309
8842DFFD2B765876F79E62D72A9D60ED

Tactics and Techniques: Mitre*

TA0011
Command and Control

Adversaries may communicate using application layer protocols associated with electronic mail delivery 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 SMTP/S, POP3/S, and IMAP that carry electronic mail may be very common in environments. Packets produced from these protocols may have many fields and headers in which data can be concealed. Data could also be concealed within the email messages themselves. An adversary may abuse these protocols to communicate with systems under their control within a victim network while also mimicking normal, expected traffic.


T1071.003
Application Layer Protocol: Mail Protocols

Adversaries may communicate using application layer protocols associated with electronic mail delivery 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 SMTP/S, POP3/S, and IMAP that carry electronic mail may be very common in environments. Packets produced from these protocols may have many fields and headers in which data can be concealed. Data could also be concealed within the email messages themselves. 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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