GandCrab 101: All about the most widely distributed ransomware of the moment

Credit to Author: Luca Nagy| Date: Tue, 05 Mar 2019 14:00:10 +0000

In this Sophos101 report, we’ll give you the lowdown on what you need to know about this, unfortunately, widely disseminated malware.<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/QbQ2o1iJn68″ height=”1″ width=”1″ alt=””/>

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Emotet 101, stage 5: a delivery vehicle for more malware

Credit to Author: Andrew Brandt| Date: Tue, 05 Mar 2019 13:59:17 +0000

By SophosLabs Research Emotet is a botnet in its own right, one so prolific and dominant that the United States CERT, the body tasked with tracking cyberthreats to the country, named Emotet in July, 2018 &#8220;among the most costly and destructive malware&#8221; to affect governments, enterprises and organizations large and small, and individual computer users. [&#8230;]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/A9JdHdI4I94″ height=”1″ width=”1″ alt=””/>

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Emotet 101, stage 4: command and control

Credit to Author: Andrew Brandt| Date: Tue, 05 Mar 2019 13:58:33 +0000

By SophosLabs Research The Emotet family could not do what it does without receiving a constant stream of instructions from its owners, or in the absence of the detailed level of feedback about its operating environment each bot sends home from an infected host machine. It also uses huge numbers of compromised websites that belong [&#8230;]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/tuvtIYBP4JI” height=”1″ width=”1″ alt=””/>

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Emotet 101, stage 3: The Emotet executable

Credit to Author: hajnalkakope| Date: Tue, 05 Mar 2019 13:57:54 +0000

By SophosLabs Research Emotet&#8217;s arrival is usually preceded by a deceptive spam email, which has a malicious attachment. Opening the attachment starts a process which can lead to an Emotet infection. The Emotet application is an evolved binary, in the sense that it has gone through thousands of iterations over its existence. Its presence as [&#8230;]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/CfniXxu0bac” height=”1″ width=”1″ alt=””/>

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Emotet 101, stage 2: The malicious attachment and killchain

Credit to Author: Andrew Brandt| Date: Tue, 05 Mar 2019 13:56:43 +0000

By SophosLabs Research The Emotet malware family is in a constant state of evolution and change. From day to day or week to week, the malware&#8217;s creators and distributors take an active role in changing up the killchain – the sequence of events that begins with a victim receiving a malicious file attachment, and ends [&#8230;]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/C8Iq5Z7cCTc” height=”1″ width=”1″ alt=””/>

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Emotet 101, stage 1: The spam lure

Credit to Author: Andrew Brandt| Date: Tue, 05 Mar 2019 13:55:43 +0000

By SophosLabs Research Emotet operates on a mass scale. Everything it does, it does in bulk. A typical infection begins when the victim receives a specially crafted spam email. Emotet&#8217;s creators send these out by the thousands and, in some cases, the bots themselves send more. The lures employ mass-created malicious document files. The payload [&#8230;]<img src=”http://feeds.feedburner.com/~r/sophos/dgdY/~4/7i2oOO4OT8A” height=”1″ width=”1″ alt=””/>

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New Golang brute forcer discovered amid rise in e-commerce attacks

Credit to Author: Jérôme Segura| Date: Tue, 26 Feb 2019 16:00:08 +0000

E-commerce sites are a hot commodity these days. We dig into how compromised PCs are helping to hack into them to inject skimmers, whether via vulnerabilities in the websites themselves or through a new malware we discovered gaining entry via brute force.

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GandCrab Riding Emotet’s Bus!

Credit to Author: Bajrang Mane| Date: Fri, 15 Feb 2019 10:03:57 +0000

Emotet Known for constantly changing its payload and infection vectors like spam mail, Malicious Doc and even Malicious JS files. It compromised a very high number of websites on the internet. Emotet malware campaign has existed since 2014. It comes frequently in intervals with different techniques and variants to deliver malware…

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Avzhan DDoS bot dropped by Chinese drive-by attack

Credit to Author: hasherezade| Date: Fri, 23 Feb 2018 18:00:00 +0000

The Avzhan DDoS bot is back in the wild again, this time being dropped by a Chinese drive-by attack. In this post, we’ll take a deep dive into its functionality and compare the sample we captured with the one described in the past.

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Drive-by cryptomining campaign targets millions of Android users

Credit to Author: Jérôme Segura| Date: Mon, 12 Feb 2018 14:00:24 +0000

Android users have been exposed to drive-by cryptomining in one of the largest campaigns that we have detected so far.

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Microsoft teams up with law enforcement and other partners to disrupt Gamarue (Andromeda)

Credit to Author: Windows Defender ATP| Date: Mon, 04 Dec 2017 23:06:44 +0000

Today, with help from Microsoft security researchers, law enforcement agencies around the globe, in cooperation with Microsoft Digital Crimes Unit (DCU), announced the disruption of Gamarue, a widely distributed malware that has been used in networks of infected computers collectively called the Andromeda botnet. The disruption is the culmination of a journey that started in

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