If you are interested in experimenting with steganography and my tools, I propose the following challenge. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Steganography Challenge, (Sat, May 3rd)
Tag: SANS Internet Storm Center, InfoCON: green
ISC Stormcast For Friday, May 2nd, 2025 https://isc.sans.edu/podcastdetail/9434, (Fri, May 2nd)
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 Friday, May 2nd, 2025…
Steganography Analysis With pngdump.py: Bitstreams, (Thu, May 1st)
A friend asked me if my pngdump.py tool can extract individual bits from an image (cfr. diary entry “Steganography Analysis With pngdump.py”). This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Steganography Analysis…
ISC Stormcast For Thursday, May 1st, 2025 https://isc.sans.edu/podcastdetail/9432, (Thu, May 1st)
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 Thursday, May 1st, 2025…
ISC Stormcast For Wednesday, April 30th, 2025 https://isc.sans.edu/podcastdetail/9430, (Wed, Apr 30th)
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 Wednesday, April 30th, 2025…
Web Scanning Sonicwall for CVE-2021-20016, (Tue, Apr 29th)
There was a post initially published in January 2022 showing an exploitable “probable zero-day vulnerabilities”[1] for Sonicwall but looking back in what has been submitted in the past year to ISC, this past week was the first time we have…
More Scans for SMS Gateways and APIs, (Tue, Apr 29th)
Last week, I wrote about scans for Teltonika Networks SMS Gateways. Attackers are always looking for cheap (free) ways to send SMS messages and gain access to not-blocklisted numbers. So, I took a closer look at similar scans we have…
ISC Stormcast For Tuesday, April 29th, 2025 https://isc.sans.edu/podcastdetail/9428, (Tue, Apr 29th)
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, April 29th, 2025…
ISC Stormcast For Monday, April 28th, 2025 https://isc.sans.edu/podcastdetail/9426, (Mon, Apr 28th)
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 Monday, April 28th, 2025…
SRUM-DUMP Version 3: Uncovering Malware Activity in Forensics, (Sun, Apr 27th)
body { font-family: Arial, sans-serif; line-height: 1.6; margin: 20px; } This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: SRUM-DUMP Version 3: Uncovering Malware Activity in Forensics, (Sun, Apr 27th)
Steganography Analysis With pngdump.py, (Sat, Apr 26th)
I like it when a diary entry like “Example of a Payload Delivered Through Steganography” is published: it gives me an opportunity to test my tools, in particular pngdump.py, a tool to analyze PNG files. This article has been indexed…
Example of a Payload Delivered Through Steganography, (Fri, Apr 25th)
In this diary, I'll show you a practical example of how steganography is used to hide payloads (or other suspicious data) from security tools and Security Analysts' eyes. Steganography can be defined like this: It is the art and science…
ISC Stormcast For Friday, April 25th, 2025 https://isc.sans.edu/podcastdetail/9424, (Fri, Apr 25th)
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 Friday, April 25th, 2025…
Attacks against Teltonika Networks SMS Gateways, (Thu, Apr 24th)
Ever wonder where all the SMS spam comes from? If you are trying to send SMS “at scale,” there are a few options: You could sign up for a messaging provider like Twilio, the AWS SNS service, or several similar…
ISC Stormcast For Thursday, April 24th, 2025 https://isc.sans.edu/podcastdetail/9422, (Thu, Apr 24th)
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 Thursday, April 24th, 2025…
ISC Stormcast For Wednesday, April 23rd, 2025 https://isc.sans.edu/podcastdetail/9420, (Wed, Apr 23rd)
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 Wednesday, April 23rd, 2025…
Honeypot Iptables Maintenance and DShield-SIEM Logging, (Wed, Apr 23rd)
In the last week I ran into some issues that I hadn't anticipated: This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Honeypot Iptables Maintenance and DShield-SIEM Logging, (Wed, Apr 23rd)
xorsearch.py: “Ad Hoc YARA Rules”, (Tue, Apr 22nd)
In diary entry “xorsearch.py: Searching With Regexes” I showed how one can let xorsearch.py generate a YARA rule with a given regular expression. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: xorsearch.py:…
ISC Stormcast For Tuesday, April 22nd, 2025 https://isc.sans.edu/podcastdetail/9418, (Tue, Apr 22nd)
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It’s 2025… so why are obviously malicious advertising URLs still going strong?, (Mon, Apr 21st)
While the old adage stating that “the human factor is the weakest link in the cyber security chain†will undoubtedly stay relevant in the near (and possibly far) future, the truth is that the tech industry could – and should…