Krebs on Security

JUNE 21, 2023

If you operate a cybercrime business that relies on disseminating malicious software, you probably also spend a good deal of time trying to disguise or “crypt” your malware so that it appears benign to antivirus and security products. This story explores the history and identity behind Cryptor[.]biz WHO RUNS CRYPTOR[.]BIZ?

Malware 219

Malware Antivirus Cybercrime Hacking 219

Krebs on Security

SEPTEMBER 1, 2021

Over the past 15 years, a cybercrime anonymity service known as VIP72 has enabled countless fraudsters to mask their true location online by routing their traffic through millions of malware-infected systems. Between 2003 and 2006, Corpse focused on selling and supporting his Haxdoor malware. Image: Google Translate via Archive.org.

Malware 288

Malware Cybercrime Internet Internet 288

Krebs on Security

FEBRUARY 26, 2023

Web hosting giant GoDaddy made headlines this month when it disclosed that a multi-year breach allowed intruders to steal company source code, siphon customer and employee login credentials, and foist malware on customer websites.

Hacking 268

Hacking Social Engineering Phishing Scams 268

Krebs on Security

AUGUST 2, 2022

With the recent demise of several popular “proxy” services that let cybercriminals route their malicious traffic through hacked PCs, there is now something of a supply chain crisis gripping the underbelly of the Internet. com , a malware-based proxy network that has been in existence since at least 2010. Image: Spur.us.

Malware 256

Malware Cybercrime Internet Internet 256

Krebs on Security

JANUARY 22, 2019

Large-scale spam campaigns often are conducted using newly-registered or hacked email addresses, and/or throwaway domains. Guilmette told KrebsOnSecurity he initially considered the possibility that GoDaddy had been hacked, or that thousands of the registrar’s customers perhaps had their GoDaddy usernames and passwords stolen.

DNS 235

DNS Internet Internet Computers and Electronics 235

Krebs on Security

FEBRUARY 24, 2023

The Mylobot malware includes more than 1,000 hard-coded and encrypted domain names, any one of which can be registered and used as control networks for the infected hosts. “I had an account that was simply hacked from me shortly after and I never bothered about it because it wasn’t mine in the first place,” he explained.

Accountability 229

Accountability Advertising Marketing Malware 229

Krebs on Security

AUGUST 30, 2019

But when accounts at those CRM providers get hacked or phished, the results can be damaging for both the client’s brand and their customers. On August 21, multiple United Rental customers reported receiving invoice emails with booby-trapped links that led to a malware download for anyone who clicked.

Phishing 214

Phishing Marketing Accountability DNS 214