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Friday , 22 September 2017
Home » ENTERPRISE » Enterprises Need to Build a Ransomware Strategy to Combat the Recent Locky Ransomware Attack
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Enterprises Need to Build a Ransomware Strategy to Combat the Recent Locky Ransomware Attack

Need to fortify email defense mechanisms and delete VB / JavaScripts not used in machines

In the wake of Locky Ransomware attack and the Government of India issuing alert across the country, Trend Micro Incorporated (TYO: 4704; TSE: 4704), a global leader in cyber security solutions, has stated that there are no incidence reported by Trend Micro’s customers in India at present. As per Trend Micro, the ransomware is not likely to be on the scale of Wannacry and Petya ransomware, which relies on Microsoft vulnerability in Windows XP. Trend Micro has also provided precautionary measures on how to stop the Lukitus variant of Locky ransomware from spreading.

Locky Ransomware

Ms. Sharda Tickoo, Technical Head, Trend Micro India said, “So far, there haven’t been any cases of Locky ransomware reported by our customers in India or across geographies, but we are getting enquiries from customers and Trend Micro’s support team is helping out in resolving them. For addressing this malware, Trend Micro has its protection in place with suspicious and bad URLs being blocked. There are technologies wherein such embedded macros and file scripts can be detected and deleted.”

Pointing out the differences between other ransomwareshe added, “Wannacry and Petya ransomware looks for Microsoft vulnerability to exploit and spread. There were only few machines with Microsoft vulnerability in Windows XP and hence the damage was huge. In this case, it is not exploiting any vulnerability, but what it uses is a Visual Basic (VB) / JavaScript encrypts in a document and the chances of this malware getting evaded are high.”

On the dos and don’ts, she further added, “Since this particular malware arrives through email compressed attachment and through hidden Visual Basic (VB) / JavaScript, we have to ensure that email as a channel is widely protected. We are trying to build a ransomware strategy with two best practices – first is to start with fortifying email defense mechanisms and second is to delete the VB or Java Script if it is not used in machines. There are certain secure configurations which are unnecessary and not running, should be blocked. This particular malware has a tendency of self deletion. It deletes itself with no traces left, once the payload is executed. It encrypts local drives and network shares. The basic hygiene is to try and avoid open network share and to make sure it is password protected.”

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