Silence
[Silence](https://attack.mitre.org/groups/G0091) is a financially motivated threat actor targeting financial institutions in different countries. The group was first seen in June 2016. Their main targets reside in Russia, Ukraine, Belarus, Azerbaijan, Poland and Kazakhstan. They compromised various banking systems, including the Russian Central Bank's Automated Workstation Client, ATMs, and card processing.(Citation: Cyber Forensicator Silence Jan 2019)(Citation: SecureList Silence Nov 2017)
Properties
- stix_id
- intrusion-set--d13c8a7f-740b-4efa-a232-de7d6bb05321
- signal_observed_at
- 2026-09-11T17:55:00+00:00
- type
- intrusion-set
MITRE ATT&CK Techniques (28)
Adversaries may create, acquire, or steal code signing materials to sign their malware or tools. Code signing provides a level of authenticity on a bi
Adversaries may obfuscate content during command execution to impede detection. Command-line obfuscation is a method of making strings and patterns wi
Adversaries may abuse Compiled HTML files (.chm) to conceal malicious code. CHM files are commonly distributed as part of the Microsoft HTML Help syst
Adversaries may use an external proxy to act as an intermediary for network communications to a command and control server to avoid direct connections
Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a
Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external ad
Adversaries may abuse various implementations of JavaScript for execution. JavaScript (JS) is a platform-independent scripting language (compiled just
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS). After a
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 ope
Adversaries may match or approximate the name or location of legitimate files, Registry keys, or other resources when naming/placing them. This is don
Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution. Ac
Adversaries may interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of ca
Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088(Citation: Symantec
Adversaries may abuse PowerShell commands and scripts for execution. PowerShell is a powerful interactive command-line interface and scripting environ
Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a met
Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run key
Adversaries may use [Valid Accounts](https://attack.mitre.org/techniques/T1078) to log into a computer using the Remote Desktop Protocol (RDP). The ad
Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Later
Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple w
Adversaries may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality m
Adversaries may abuse the Windows service control manager to execute malicious commands or payloads. The Windows service control manager (<code>servic
Adversaries may gain access to and use centralized software suites installed within an enterprise to execute commands and move laterally through the n
Adversaries may send spearphishing emails with a malicious attachment in an attempt to gain access to victim systems. Spearphishing attachment is a sp
Adversaries may buy, steal, or download software tools that can be used during targeting. Tools can be open or closed source, free or commercial. A to
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense
An adversary can leverage a computer's peripheral devices (e.g., integrated cameras or webcams) or applications (e.g., video call services) to capture
Adversaries may abuse Visual Basic (VB) for execution. VB is a programming language created by Microsoft with interoperability with many Windows techn
Adversaries may abuse the Windows command shell for execution. The Windows command shell ([cmd](https://attack.mitre.org/software/S0106)) is the prima
Software & Tools (3)
[Empire](https://attack.mitre.org/software/S0363) is an open-source, cross-platform remote administration and post-exploitation framework that is publ
[SDelete](https://attack.mitre.org/software/S0195) is an application that securely deletes data in a way that makes it unrecoverable. It is part of th
[Winexe](https://attack.mitre.org/software/S0191) is a lightweight, open source tool similar to [PsExec](https://attack.mitre.org/software/S0029) desi
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