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Increasing Searches for ZIP Files, (Thu, Aug 28th)
I noticed recently that we have more and more requests for ZIP files in our web honeypot logs. Over the last year, we have had a substantial increase in these requests. Here are some of the most common URLs requested so far this year: url c /backup.zip 10977 /web.zip 9701 /www.zip 9414 /html.zip 9361 /data.zip…
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ISC Stormcast For Thursday, August 28th, 2025 https://isc.sans.edu/podcastdetail/9590, (Thu, Aug 28th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Interesting Technique to Launch a Shellcode, (Wed, Aug 27th)
In most attack scenarios, attackers have to perform a crucial operation: to load a shellcode in memory and execute it. This is often performed in a three-step process: Some memory must be allocated and flagged as “executable” with VirtualAlloc() (and sometimes combined with VirtualProtect()) The shellcode (often deobfuscated) is copied into this newly allocated memory…
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ISC Stormcast For Wednesday, August 27th, 2025 https://isc.sans.edu/podcastdetail/9588, (Wed, Aug 27th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Getting a Better Handle on International Domain Names and Punycode, (Tue, Aug 26th)
International domain names (IDN) continue to be an interesting topic. For the most part, they are probably less of an issue than some people make them out to be, given that popular browsers like Google Chrome are pretty selective in displaying them. But on the other hand, they are still used legitimately or not, and…
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ISC Stormcast For Tuesday, August 26th, 2025 https://isc.sans.edu/podcastdetail/9586, (Tue, Aug 26th)
(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, August 25th, 2025 https://isc.sans.edu/podcastdetail/9584, (Mon, Aug 25th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Reading Location Position Value in Microsoft Word Documents, (Mon, Aug 25th)
While studying for the GX-FE [1], I started exploring the “Position” value in the registry that helps to tell Microsoft Word where you “left off”. It’s a feature many people that use Word have seen on numerous occasions and is explored in FOR500: Windows Forensic Analysis [2]. Figure 1: Word pop-up offering to continue at…
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The end of an era: Properly formated IP addresses in all of our data., (Sun, Aug 24th)
The Internet Storm Center and DShield websites are about 25 years old. Back in the day, I made some questionable decisions that I have never quite cleaned up later. One of these decisions was to use a “15 character 0-padded” format for IP addresses. This format padded each byte in the IP address with leading…
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ISC Stormcast For Friday, August 22nd, 2025 https://isc.sans.edu/podcastdetail/9582, (Fri, Aug 22nd)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
