Website Security News
During an incident response investigation, we detected an interesting piece of heavily obfuscated JavaScript malware. Once decoded, we found out that cryptominers were running on visitor’s computers when they accessed our customer’s website. We have previously discussed how cryptomining can happen in many covert ways. In…
This post provides a brief overview of how to manually remove server-side cryptominers and other types of Binary-Process-Cron malware from a server. Unlike browser-based JavaScript cryptominers that have been injected…
Read More about Cryptominers: Binary-Process-Cron Variants and Methods of Removal
We are all familiar with the conventional domain name notation, where different levels are concatenated with the full stop character (period). E.g. “www.example.com”, where “www” is a subdomain, “example” is…
Read More about CoinImp Cryptominer and Fully Qualified Domain Names
As we have previously discussed on this blog, surreptitious cryptomining continues to be a problem as new methods emerge to both evade and hasten the ease of mining at the…
Read More about An Old Trick with a New Twist: Cryptomining Through Disguised URL Shorteners
Update – March 28th, 2018: The fake Flash update files referenced in this post have been moved from GitHub to port.so[.]tl, and the bit.wo[.]tc script to byte.wo[.]tc. A few days…
Read More about GitHub Hosts Infostealers Part 2: Cryptominers and Credit Card Stealers
Recently we wrote about how GitHub/GitHub.io was used in attacks that injected cryptocurrency miners into compromised websites. Around the same time, we noticed another attack that also used GitHub for…
Read More about Malicious Website Cryptominers from GitHub. Part 2.
Recently, a webmaster contacted us when his AVG antivirus reported that the JS:Miner-C [Trj] infection was found on their site. Our investigation revealed a hidden iframe had been injected into…
Update Dec. 8 2017: The cloudflare[.]solutions domain has now been taken down. A few weeks ago, we wrote about a massive WordPress infection that injected an obfuscated script pretending to be…
Read More about Cloudflare[.]Solutions Keylogger on Thousands of Infected WordPress Sites
Last month we wrote about how the emergence of website cryptocurrency miners resulted in hackers abusing the technology by injecting the CoinHive miners into compromised sites without the consent of…
Cryptocurrencies are all the rage now. Bitcoin, altcoins, blockchain, ICO, mining farms, skyrocketing exchange rates – you see or hear this every day in the news now. Everyone seems to…
