

Multiple Palo Alto Networks Products Vulnerabilities
March 13, 2025
Remcos RAT – Active IOCs
March 14, 2025
Multiple Palo Alto Networks Products Vulnerabilities
March 13, 2025
Remcos RAT – Active IOCs
March 14, 2025Severity
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 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
8f8da3c09f54ba611da847eb80c99686
303f23ad794865eea307bcac80ee2bc5
2a1305b51a81523b006bdfb440f1968e
4a38c2048da687af5b8ed26cfb60e4cd
SHA-256
7dc1fbc080662648b9fbfb4a4bd3ccf782b02ef3ffb1f1c841e5a041109ec7bf
98cefe000ff7d0251c60284ab7b33aa2191bc98bb5e2440161799ba9c15562ae
319f968ee706288c0a62d96e5571104de53f952f2cbb2b40651aa05a9f48d73a
77a27aa7867b9af53f7e54c38158e34446c9adfd2f5960633dc9834c6190e564
SHA1
c7da974c27816850bb08c3c02d72f7cd193ca7fe
35ddf57b51671ee9ba0d6b2911b1a56bdb9e251d
53112e60487222544da78b91baf8d379179f6097
ed406f4969e98debb8fd11efb134d6cd019d3076
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.