WannaCry’s Accidental Hero

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Quick update on the massive #WannaCry cyber attack. Before I begin, this is going to SOUND like good news, and it is, but please realize that the propagation of this malware can be restarted VERY easily, so please follow the instructions we laid out here to patch.

Apparently there was a kill switch built into the malware. It attempts a HTTP GET on iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea[.]com. If the request succeeds, it stops propagating, as noted by Talos Intellgience:

Earlier today, @MalwareTechBlog observed the traffic to the fake domain, registered it, and sinkholed it, thus stopping the bleeding in a major way. Funny enough, he didn’t realize the domain check kill switch existed. It was sort of dumb luck:

So I can only add”accidentally stopped an international cyber attack” to my Résumé. ^^

— MalwareTech (@MalwareTechBlog) May 13, 2017

There you have it. @MalwareTechBlog: #WannaCry’s accidental hero.

The post WannaCry’s Accidental Hero appeared first on Varonis Blog.

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Varonis is a pioneer in data security and analytics, fighting a different battle than conventional cybersecurity companies. Varonis focuses on protecting enterprise data on premises and in the cloud: sensitive files and emails; confidential customer, patient and employee data; financial records; strategic and product plans; and other intellectual property. The Varonis Data Security Platform detects insider threats and cyberattacks by analyzing data, account activity and user behavior; prevents and limits disaster by locking down sensitive and stale data; and efficiently sustains a secure state with automation. With a focus on data security, Varonis serves a variety of use cases including governance, compliance, classification, and threat analytics. Varonis started operations in 2005 and, as of December 31, 2017, had approximately 6,250 customers worldwide — comprised of industry leaders in many sectors including technology, consumer, retail, financial services, healthcare, manufacturing, energy, media, and education.
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