ISC StormCast for Friday, March 29th, 2024
SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)
SANS ISC Handlers
4.9 • 754 Ratings
🗓️ 29 March 2024
⏱️ 6 minutes
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| 0:00.0 | Hello and welcome to the Friday, March 29th, 2004 edition of the Sands and it's Storms and a stormcast. My name is Johannes Ulrich and I'm recording from Jacksonville, Florida. |
| 0:14.3 | We got another gem for the malware reverse analysts here today from Xavier. |
| 0:20.3 | Xavier looked at some pretty interestingly obfuscated JavaScript. |
| 0:25.6 | It used sort of a number of different tricks to make analysis of the JavaScript quite |
| 0:31.3 | difficult. |
| 0:32.1 | It was created using UTF16, so you had to essentially remove every second bite. |
| 0:40.0 | Then there was a bunch of additional code that pretty much just, well, did nothing and |
| 0:46.3 | that just served to sort of distract the analyst. |
| 0:49.0 | Also, some commands were using aliases like curl was replaced with press for some reason. |
| 0:57.9 | In the end, it downloaded an async rat, a well-known remote admin tool, so that's what you ended up |
| 1:06.6 | with here, and you gave essentially the attacker remote access to your system. |
| 1:11.7 | The original name of the file was Rechnung, then set of numbers, PDF.js. |
| 1:18.9 | Rechung is the German word for invoice, so it apparently tried to claim to be an invoice PDF, |
| 1:25.8 | which of course we often see in email attachments. |
| 1:29.5 | The virus total score came in at only three out of 59. |
| 1:35.7 | Now, I think it was about a month ago when we had some attacks against Team City, |
| 1:41.3 | and this JetBrains product got in a little bit of trouble here with a security |
| 1:48.1 | company Rapid 7 for releasing patches without disclosing their security content. |
| 1:55.5 | And with that, of course, administrators were kind of flying dark. |
| 1:59.4 | Now, there was a couple couple articles I at least saw today |
| 2:03.5 | that published about the just-released version of Team City. |
| 2:09.3 | That's version 24-3. |
... |
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