The Symantec Threat Hunter Team, a part of Broadcom Software, has uncovered what appears to be a new ransomware threat called Yanluowang that is being used in targeted attacks.
In a recent attempted ransomware attack against a large organization, Symantec obtained a number of malicious files that, upon further investigation, revealed the threat to be a new, if somewhat underdeveloped, ransomware family.
The Threat Hunter Team first spotted suspicious use of AdFind, a legitimate command-line Active Directory query tool, on the victim organization’s network. This tool is often abused by ransomware attackers as a reconnaissance tool, as well as to equip the attackers with the resources that they need for lateral movement via Active Directory. Just days after the suspicious AdFind activity was observed on the victim organization, the attackers attempted to deploy the Yanluowang ransomware.
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Source: Symantec