Microsoft told organizations Wednesday to focus less on the payload of Java-based ransomware PonyFinal and instead key “more on how it’s delivered” via human-operated ransomware attacks.

“PonyFinal is at the tail end of protracted human-operated ransomware campaigns that are known to stay dormant and wait for the most opportune time to deploy the payload,” Microsoft Security Intelligence warned in a series of tweets, urging companies to “learn how to build organizational security hygiene” to prevent the attacks.

Attackers have been observed gaining access using brute force attacks against systems management server, deploying VBScript then running a PowerShell reverse shell for data dumps. A remote manipulator system lets them bypass event logging.

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