Attackers have infected thousands of open FTP servers run by Seagate Central with Mal/Miner-C malware that mines...
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
Monero crypto coins. How did this malware make its way onto the FTP servers and specifically target Monero cryptocurrency? How can enterprises protect their FTP servers from being infected in a similar way by other malware?
Embedded and internet of things devices containing default accounts and other insecure components are the new scourge of the internet. The developers of these systems don't appear to have learned from lessons in history, and are repeating the same mistakes.
Sophos' paper about the Mal/Miner-C malware describes how it abused insecure Seagate network-attached storage (NAS) devices using open FTP servers that allowed write access to a default account.
The malware propagated by scanning the internet for open FTP servers and then infecting those systems that allowed default account logins. The malware would copy itself onto the device and make itself look like a photo directory in an effort to socially engineer a user of the NAS to open the file, thus infecting the endpoint with the malware. Once infected, the endpoint would start mining Monero cryptocurrency.
Sophos explains that the malware may have chosen Monero cryptocurrency to mine because it remains reasonable for standard endpoints to mine new coins, as opposed to bitcoins. The malware author could profit more by deciding on Monero cryptocurrency.
Enterprises still running vulnerable open FTP servers have serious deficiencies in their information security programs. Open FTP servers with default accounts and write access enabled have been an issue for over 20 years.
Basic vulnerability scanning can be used to identify these exposed systems, and enterprises should carefully evaluate any system that has been flagged for signs of a potential compromise.
FTP is a relatively efficient method of transferring files, so enterprises may still use this technology, but they should also carefully evaluate its risks and decide if they would be better served by moving to a more modern system. At a minimum, default accounts should be disabled, and a secure version of FTP should be used to prevent attacks from Miner-C malware and others like it.
Discover how blockchain technology works
Read more about choosing the right variety of blockchain
Find out how to keep your network secure when making large file transfers
Dig Deeper on Malware, virus, Trojan and spyware protection and removal
Related Q&A from Nick Lewis
Social engineering emails targeted at customer service staff have led to the spread of the August malware. Expert Nick Lewis explains how to identify...continue reading
Android apps infected with Gooligan malware enable attackers to compromise the security of Google accounts. Expert Nick Lewis explains how users can ...continue reading
A malvertising campaign by the AdGholas group has been found spreading the Stegano exploit kit. Expert Nick Lewis explains how web advertisements are...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.