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I wanted to do a quick write-up on an interesting PowerPoint macro document that contains njRAT. njRAT is a .NET trojan first identified in 2013 that has largely targeted countries in the Middle East as well as South America. The malicious document can be found via MalwareBazaar: https://bazaar.abuse.ch/sample/edba3ca498110106418658167533034aeb929276fe81de80c6de1a6bb95120e0 Information Gathering When triaging a suspected malicious […]
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Often attributed to Chinese-speaking threat actors, PlugX a remote access trojan(RAT), was identified by security researchers in 2012. With several variants of the RAT identified by vendors over the year, many techniques used to compromise systems have remained the same. While perusing public malware sandboxes for interesting new samples, I stumbled upon a Windows executable […]
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No stranger to this blog, BlackTech has continued to modify techniques to compromise networks and even suffered an OPSEC slip in the way of an open directory. This post will cover a malicious document similar to that identified by [1] PWC and [2] NTT in the previous reporting on the group. While I cannot definitively […]
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Overview On November 10, 2020, JPCert[1] published a blog post in Japanese (the English version followed about a week later), providing an overview of BlackTech’s PLEAD backdoor, referred to as “ELF_PLEAD”, specifically targeting *nix systems. In late March 2021, Intezer[2] tweeted a hash of what was described as a fully undetectable (FUD) version of ELF_PLEAD. […]
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