APT Intelligence Sharing: Collaborating for Stronger Security
January 29, 2025Amadey Botnet – Active IOCs
January 29, 2025APT Intelligence Sharing: Collaborating for Stronger Security
January 29, 2025Amadey Botnet – Active IOCs
January 29, 2025Severity
Medium
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 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.
To protect against the DarkCrystal RAT and similar threats, it is important to regularly update software and security patches, implement multi-factor authentication, be cautious when opening emails and attachments, and regularly back up important data. It is also important to run anti-virus software and to be aware of the signs of a RAT infection, such as unusual system activity or slow performance. If a system is suspected of being infected with the DarkCrystal RAT or any other RAT, it is important to take immediate action to isolate the system and to seek professional assistance in cleaning up the infection.
Impact
- Unauthorized Remote Access
- Keylogging
- Sensitive Information Theft
- Credential Theft
Indicators of Compromise
MD5
a079d0ef7608f8fb08e6e67ebe720cdd
5b9d02a7f74c3e3f31fe5c09cd496452
3476cd061ca60baffd1a9cf0bbaed40e
29329d17b110755ec3a04e157abb845c
15af6864baf346e9b5fa1430a056e1a8
SHA-256
647194fc5716bcdebe9b20e13b3f08e7816d13530a15e8d1669f2f25ba628274
e2eba741a37e966184cb0c333410909b35ce9a1269b1ec73c464648cfbc89e6c
de027cb9277735fb1ebeda3beef8c5eb209eae1f89a02915c373406bedccebc8
f14e979398839caddd543261a8e9773bcd5a95d9f433e113ecdc8605cd3b2393
fc7c1ae206763de95cdfd31d847ca4a6ecdcd0ee4d1fa30dc6c9e29d6f85877f
SHA1
612e4d36e0c92c850848ff92dc466fb2c956415b
a719d879a246ac3130eb02131a034a4359256c27
05f9416183efec7caed9e9039cb4255e94076c8b
756fd244223a93ce2778fd7fb5558d9861328d01
5ad0dfff7f611bb92ee3d3f24323f4dd9c7d5562
Remediation
- Block all threat indicators at your respective controls.
- Search for indicators of compromise (IOCs) in your environment utilizing your respective security controls.
- Emails from unknown senders should always be treated with caution.
- Never trust or open links and attachments received from unknown sources/senders.
- Enable antivirus and anti-malware software and update signature definitions on time. Using multi-layered protection is necessary to secure vulnerable assets.
- Patch and upgrade any platforms and software on time and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.