This is nothing “amazingly new”, but more of a reminder to secure your “authorized_keys” file for SSH. One of the first things I see even simple bots do to obtain persistent access to a UNIX system is to add a…
Category: SANS Internet Storm Center, InfoCON: green
ISC Stormcast For Tuesday, May 27th, 2025 https://isc.sans.edu/podcastdetail/9466, (Tue, May 27th)
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SVG Steganography, (Mon, May 26th)
Didier recently published several diaries related to steganography. I have to admit that steganography isn't exactly my favorite topic. It is one of those “neat” infosec toys, but its applicability is limited. Data exfiltration usually does not require proper steganography,…
ISC Stormcast For Friday, May 23rd, 2025 https://isc.sans.edu/podcastdetail/9464, (Fri, May 23rd)
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Resilient Secure Backup Connectivity for SMB/Home Users, (Thu, May 22nd)
If you are reading this, you are probably someone who will not easily go without internet connectivity for an extended amount of time. You may also have various home systems that you would like to be able to reach in…
ISC Stormcast For Thursday, May 22nd, 2025 https://isc.sans.edu/podcastdetail/9462, (Thu, May 22nd)
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New Variant of Crypto Confidence Scam, (Wed, May 21st)
In February, we had a few diaries about crypto wallet scams. We saw these scams use YouTube comments, but they happened via other platforms and messaging systems, not just YouTube [1]. The scam was a bit convoluted: The scammer posted…
ISC Stormcast For Wednesday, May 21st, 2025 https://isc.sans.edu/podcastdetail/9460, (Wed, May 21st)
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Researchers Scanning the Internet, (Tue, May 20th)
We have been using our data to identify researchers scanning the internet for a few years. Currently, we are tracking 36 groups performing such scans, and our data feed of the IP addresses used contains around 33k addresses [1]. …
ISC Stormcast For Tuesday, May 20th, 2025 https://isc.sans.edu/podcastdetail/9458, (Tue, May 20th)
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RAT Dropped By Two Layers of AutoIT Code, (Mon, May 19th)
Like .Net, AutoIT[1] remains a popular language for years in the malware ecosystem. It's a simple language that can interact with all the components of the Windows operating system. I regularly discover AutoIT3 binaries (yes, it can be compiled). This…
ISC Stormcast For Monday, May 19th, 2025 https://isc.sans.edu/podcastdetail/9456, (Mon, May 19th)
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xorsearch.py: Python Functions, (Sat, May 17th)
A couple years ago I published tool xorsearch.py for this diary entry: “Small Challenge: A Simple Word Maldoc – Part 4”. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: xorsearch.py: Python Functions,…
ISC Stormcast For Friday, May 16th, 2025 https://isc.sans.edu/podcastdetail/9454, (Fri, May 16th)
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ISC Stormcast For Thursday, May 15th, 2025 https://isc.sans.edu/podcastdetail/9452, (Thu, May 15th)
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Web Scanning SonicWall for CVE-2021-20016 – Update, (Wed, May 14th)
I published on the 29 Apr 2025 a diary [1] on scanning activity looking for SonicWall and since this publication this activity has grown 10-fold. Over the past 14 days, several BACS students have reported activity related to SonicWall scans…
Another day, another phishing campaign abusing google.com open redirects, (Wed, May 14th)
A couple of weeks ago, I came across a phishing campaign that highlights a recurring issue with open redirect vulnerabilities in well-known and trusted services. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original…
ISC Stormcast For Wednesday, May 14th, 2025 https://isc.sans.edu/podcastdetail/9450, (Wed, May 14th)
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Microsoft Patch Tuesday: May 2025, (Tue, May 13th)
Today, Microsoft released its expected update for the May patch on Tuesday. This update fixes 78 vulnerabilities. 11 are rated as critical, and 66 as important. Five of the vulnerabilities have already been exploited and two were publicly known but…
ISC Stormcast For Tuesday, May 13th, 2025 https://isc.sans.edu/podcastdetail/9448, (Tue, May 13th)
This post doesn’t have text content, please click on the link below to view the original article. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: ISC Stormcast For Tuesday, May 13th, 2025…