UNC2596勒索软件集团（也称为古巴）正在滥用Microsoft Exchange中发现的漏洞，以妥协公司终点，收获数据 ，并最终部署ColdDraw恶意软件。
来自Mandiant的网络安全专家陷入了勒索软件集团的步道 ，并说它主要是在美国和加拿大搜寻公司。
专家报告指出，该小组至少自2021年8月以来一直使用Proxyshell和Proxylogon漏洞来种植各种Web壳 ，远程访问木马（大鼠）和后门 ，以折磨的系统 。
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Among the backdoors used, CobaltStrike and NetSupport Manager seem to be the most popular choices, but they often use home-grown products, dubbed “Bughatch”, “Wedgecut ”, “Burntcigar ”, or “Eck”. Some of these are used as reconnaissance tools, others to terminate processes and escalate privileges.
The difference between UNC2596 and other ransomware groups out there, is that this group does not send exfiltrated data towards cloud services. Instead, they use private infrastructure.
A growing ransomware actor
The Cuba ransomware group was reportedly formed in late 2019, and after a relatively slow start, picked up its pace in 2020 and 2021. In May 2021, the group teamed up with Hancitor malware spammers, successfully phishing out passwords for corporate networks with malicious DocuSign files.
In late 2021, the FBI issued an advisory about the group which claimed the group breached 49 critical infrastructure organizations in the US (the Cuba leak website had fewer than 30 victims listed). Its operations earned it almost $44 million, the law enforcement agency added. However, it demanded $74 million.
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> Ransomware attacks are levelling up extortion tactics
> 俄罗斯黑客正在勒索奖励奖励
> IT工人认为勒索软件和恐怖主义一样严重
尽管有赎金的要求 ，即无薪和报酬，与勒索软件游戏中一些最大的玩家相比 ，该小组的数百万美元数百万 。
例如 ，来自EMSISOFT的网络安全研究人员表示，去年有105份古巴勒索软件提交 ，而Conti已有600多个。
通过：BleepingComputer
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本文概览： UNC2596勒索软件集团（也称为古巴）正在滥用Microsoft Exchange中发现的漏洞，以妥协公司终点，收获数据，并最终部署ColdDraw恶意软件。 ...