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Severity
High
Analysis Summary
DCRat – a Russian backdoor, was initially introduced in 2018, but rebuilt and relaunched a year later. The DCRat backdoor appears to be the product of a single threat actor who goes online with the pseudonyms of “boldenis44,” “crystalcoder,” and Кодер (“Coder”).
DCRat is one of the cheapest commercial RATs. For a two-month membership, the price starts at 500 RUB (less than 5 GBP/US$6), and it periodically drops even cheaper during special offers. This is written in .NET and features a modular structure, allowing affiliates to create their own plugins using DCRat Studio, a dedicated integrated development environment (IDE).
The malware’s modular architecture allows it to be extended for a variety of nefarious objectives, including surveillance, reconnaissance, data theft, DDoS attacks, and arbitrary code execution.
The DCRat consists of three parts:
- A stealer/client executable
- The command-and-control (C2) endpoint/ interface is a single PHP page
- An administrator tool
The malware is still in development, the author announces any news and updates through a dedicated Telegram channel with about 3k users updated with any news and changes.
Impact
- Unauthorized Remote Access
- Keylogging
- Information Theft
- Password Theft
Indicators of Compromise
MD5
- 7fe5011e10d3ae6a3e670963b3798fce
- 3a95eab6064739835eb935e0a5d44021
SHA-256
- 13f0f253ead44166cfd35acd2c84490a03e695e89c9f3211df3a7b0b22a8b8b4
- 2962861b1edf9f4736f060440376d7af47593d9dd31e44b74e44411139882300
SHA-1
- 9bc220c80d811f3762802728c4651172318b9de3
- 608aecb603ca4ddd15cdb8ede15890eb8637286a
Remediation
- Block the threat indicators at their respective controls.
- Search for IOCs in your environment.