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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