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Latest Malware Alerts

A Look at Locky Ransomware’s Recent Spam Activities

Ransomware has been one of the most prevalent, prolific, and pervasive threats in the 2017 threat landscape, with financial losses among enterprises and end users now likely to have reached billions of dollars. Locky ransomware, in particular, has come a long way since first emerging in early 2016. Despite the number of times it apparently spent in hiatus, Locky remains a relevant and credible threat given its impact on end users and especially businesses. Our detections show that it's making another comeback with new campaigns.

A closer look at the file-encrypting malware’s activities reveals a constant: the use of spam. While they remain a major entry point for ransomware, Locky appears to be concentrating its distribution through large-scale spam campaigns of late, regardless of the variants released by its operators/developers.

Post from: Trendlabs Security Intelligence Blog - by Trend Micro

A Look at Locky Ransomware’s Recent Spam Activities

Magnitude Exploit Kit Now Targeting South Korea With Magniber Ransomware

A new ransomware is being distributed by the Magnitude exploit kit: Magniber (detected by Trend Micro as RANSOM_MAGNIBER.A), which we found targeting South Korea via malvertisements on attacker-owned domains/sites. The development in Magnitude’s activity is notable not only because it eschewed Cerber—its usual ransomware payload—in favor of Magniber. Magnitude now also appears to have become an exploit kit expressly targeting South Korean end users.

The Magnitude exploit kit, which previously had a global reach, was offered as a service in the cybercriminal underground as early as 2013. It then left the market and became a private exploit kit that mainly distributed ransomware such as CryptoWall. At the start of the second half of 2016, Magnitude shifted focus to Asian countries, delivering various ransomware such as Locky and Cerber. More recently though, we noticed that Magnitude underwent a hiatus that began on September 23, 2017, and it then returned on October 15. With help from Kafeine and malc0de, we were able to uncover Magnitude’s new payload, Magniber.

Post from: Trendlabs Security Intelligence Blog - by Trend Micro

Magnitude Exploit Kit Now Targeting South Korea With Magniber Ransomware

New Malicious Macro Evasion Tactics Exposed in URSNIF Spam Mail

by John Anthony Bañes Malicious macros are commonly used to deliver malware payloads to victims, usually by coercing victims into enabling the macro sent via spam email. The macro then executes a PowerShell script to download ransomware or some other malware. Just this September EMOTET, an older banking malware, leveraged this method in a campaign that...

Post from: Trendlabs Security Intelligence Blog - by Trend Micro

New Malicious Macro Evasion Tactics Exposed in URSNIF Spam Mail

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