Tag Archives: Worm

Building A Global Nation State SMB Exploit Honeypot Infrastructure With A £50 Budget #EternalPot

Note to post: All words, IP ownership, analysis, opinions, data, graphs et al are the property of Kevin Beaumont and where altered and extracted are done so remaining true to the original meaning / assertions. From and article by “Kevin Beaumont InfoSec, from the trenches of reality. Email kevin.beaumont@gmail.com | Twitter: @gossithedog on Twitter” titled “EternalPot — Lessons from building a global Nation State SMB exploit honeypot infrastructure” athttps://doublepulsar.com/eternalpot-lessons-from-building-a-global-nation-state-smb-exploit-honeypot-infrastructure-3f2a0b064ffe

Worthy of note before beginning to read this beauty – Mr. Beaumont predicted that this would happen back in April 2017:

Now over to the expert ….

Extracts BEGIN (again full original article here

A week ago I started building #EternalPot, a honeypot for the Equation Group SMB exploits leaked by the Shadow Brokers last month.” (May 2017) – “My entire budget for one of this is £50, as I self fund all my InfoSec research — I work for a company that makes crab paste, so everything is done outside of work, on my own time. I highly recommend working InfoSec for a company where the CapEx tap is turned off temporarily, by the way, as you’ll find out how skilled your workforce are and you’ll get back to the most important part of InfoSec: the basics. Build simple solutions, always…..

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There has been a lot of vendor and press coverage of WannaCry which has been inaccurate. Despite what has been said, WannaCry was not spread via phishing or email — in fact, it was an SMB worm. Seeing a constant stream of misinformation from InfoSec vendors still around this has been depressing — it still continues to this day, long since the major players and initial victims walked back the email line…..

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The EternalPot data has shown advanced attacks, multiple coin miners, remote access trojans and lateral movement attempts into corporate networks — all via the Windows SMBv1 service. One of the exploits — EternalBlue — was used by the WannaCry ransomware spreader…..

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As you can see pre-WannaCry (refer to diagram in article and below), these SMB attacks were almost non-existent. It’s an SMB worm like the ones from the prior decade. Another angle to the press coverage was Windows XP being impacted — in fact, an entire weekend of UK mainstream media and political commentary ran about this. While SMBv1 has serious issues on Windows XP and 2003 (and on later OSes!) and should be patched and firewalled (aka disabled), the reality was the WannaCry spreader didn’t work on Windows XP SP3…..

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All the WannaCry samples seen so far — thousands delivered in real world honeypots — have two factors:

  1. They are one of two corrupt versions, where they spread but fail to execute ransomware as the PE headers are corrupt.
  2. They contain working killswitches.

If you’re pondering why WannaCry seemed to disappear almost completely, here we are. The authors simply disappeared. The Tor payment pages don’t even exist now. We owe MalwareTech more than pizza…..

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Another angle to the press coverage was Windows XP being impacted — in fact, an entire weekend of UK mainstream media and political commentary ran about this. While SMBv1 has serious issues on Windows XP and 2003 (and on later OSes!) and should be patched and firewalled (aka disabled), the reality was the WannaCry spreader didn’t work on Windows XP SP3. Here’s Kaspersky’s graph of infected operating systems…..

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One thing I will say — I don’t want to name the vendors, but some of the biggest next-generation security productssimply aren’t detecting SMB attacks nearly well enough. Malware regularly infects these systems, and they have to be reimaged as a result. It is amazing seeing next gen, premium tools with machine learning etc running Coin Miners andremote access trojans delivered via old exploits, with the tools not even noticing. It has been very eye opening for me. The marketing to reality Venn diagram here isn’t so Venn. At times it is so bad it is actually jaw dropping seeing certain attacks not being detected…..

Extracts END (again full original article here

ENDS