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
- c6b62cf78028c333e2adaaaf993c193d
- c38955f79b23fe751718121fefcd7695
SHA-256
- 50e30c6649c8f63ecf147a1b1a7831f34c7827f46b7ad76a1f9b089c6cacfdb9
- 6ae816ec46ae1900c7a334251d27c93c9b793ee77b521b5dfbb9b81c64d21c10
SHA-1
- c92da4915d8365e25148ac77184e7913c7181969
- 59ae09cee276abee4803260a53a6f40e6a160f65
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.