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![Differentiating Between a Targeted Intrusion and an Automated Opportunistic Scanning [Guest Diary], (Wed, Mar 4th)](/wp-content/uploads/2026/03/Joseph_Gruen_Picture1-hmhPDl.png)
Differentiating Between a Targeted Intrusion and an Automated Opportunistic Scanning [Guest Diary], (Wed, Mar 4th)
[This is a Guest Diary by Joseph Gruen, an ISC intern as part of the SANS.edu BACS program] The internet is under constant, automated siege. Every publicly reachable IP address is probed continuously by bots and scanners hunting for anything that can be exploited or retrieved. It’s not because there is a specific target, but…
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Want More XWorm?, (Wed, Mar 4th)
And another XWorm[1] wave in the wild! This malware family is not new and heavily spread but delivery techniques always evolve and deserve to be described to show you how threat actors can be imaginative! This time, we are facing another piece of multi-technology malware. Here is a quick overview: The Javascript is a classic obfuscated one: No need…
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ISC Stormcast For Wednesday, March 4th, 2026 https://isc.sans.edu/podcastdetail/9834, (Wed, Mar 4th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Bruteforce Scans for CrushFTP , (Tue, Mar 3rd)
CrushFTP is a Java-based open source file transfer system. It is offered for multiple operating systems. If you run a CrushFTP instance, you may remember that the software has had some serious vulnerabilities: CVE-2024-4040 (the template-injection flaw that let unauthenticated attackers escape the VFS sandbox and achieve RCE), CVE-2025-31161 (the auth-bypass that handed over the…
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ISC Stormcast For Tuesday, March 3rd, 2026 https://isc.sans.edu/podcastdetail/9832, (Tue, Mar 3rd)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Quick Howto: ZIP Files Inside RTF, (Mon, Mar 2nd)
In diary entry “Quick Howto: Extract URLs from RTF files” I mentioned ZIP files. There are OLE objects inside this RTF file: They can be analyzed with oledump.py like this: Options –storages and -E %CLSID% are used to show the abused CLSID. Stream CONTENTS contains the URL: We extracted this URL with the method…
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Wireshark 4.6.4 Released, (Mon, Mar 2nd)
Wireshark release 4.6.4 fixes 3 vulnerabilities and 15 bugs. Didier Stevens Senior handler blog.DidierStevens.com (c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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ISC Stormcast For Monday, March 2nd, 2026 https://isc.sans.edu/podcastdetail/9830, (Mon, Mar 2nd)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Fake Fedex Email Delivers Donuts!, (Fri, Feb 27th)
It’s Friday, let’s have a look at another simple piece of malware to close a busy week! I received a Fedex notification about a delivery. Usually, such emails are simple phishing attacks that redirect you to a fake login page to collect your credentials. Here, it was a bit different: Nothing really fancy but it…
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ISC Stormcast For Friday, February 27th, 2026 https://isc.sans.edu/podcastdetail/9828, (Fri, Feb 27th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
