Tag: SANS Internet Storm Center, InfoCON: green

The amazingly scary xz sshd backdoor, (Mon, Apr 1st)

2024-04-01 16:04

Unless you took the whole weekend off, you must have seen by now that Andres Freund published an amazing discovery on Friday on the Openwall mailing list (https://www.openwall.com/lists/oss-security/2024/03/29/4). This article has been indexed from SANS Internet Storm Center, InfoCON: green…

The xz-utils backdoor in security advisories by national CSIRTs, (Mon, Apr 1st)

2024-04-01 13:04

For the last few days, the backdoor in xz-utils[1] has been among the main topics of conversation in the global cyber security community. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: The…

ISC Stormcast For Monday, April 1st, 2024 https://isc.sans.edu/podcastdetail/8918, (Mon, Apr 1st)

2024-04-01 03:04

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 1st, 2024…

Checking CSV Files, (Sun, Mar 31st)

2024-03-31 19:03

Like Xavier (diary entry “Quick Forensics Analysis of Apache logs”), I too often have to analyze client&#x26;#39;s log files. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Checking CSV Files, (Sun, Mar…

Wireshark 4.2.4 Released, (Sun, Mar 31st)

2024-03-31 18:03

Wireshark release 4.2.4 fixes 1 vulnerability (%%cve:2024-2955%%) and 10 bugs. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Wireshark 4.2.4 Released, (Sun, Mar 31st)

Quick Forensics Analysis of Apache logs, (Fri, Mar 29th)

2024-03-29 08:03

Sometimes, you&#x26;#xe2;&#x26;#x80;&#x26;#x99;ve to quickly investigate a webserver logs for potential malicious activity. If you&#x26;#39;re lucky, logs are already indexed in real-time in a log management solution and you can automatically launch some hunting queries. If that&#x26;#39;s not the case, you…

ISC Stormcast For Friday, March 29th, 2024 https://isc.sans.edu/podcastdetail/8916, (Fri, Mar 29th)

2024-03-29 03:03

From JavaScript to AsyncRAT, (Thu, Mar 28th)

2024-03-28 11:03

ISC Stormcast For Thursday, March 28th, 2024 https://isc.sans.edu/podcastdetail/8914, (Thu, Mar 28th)

2024-03-28 03:03

Scans for Apache OfBiz, (Wed, Mar 27th)

2024-03-27 13:03

Today, I noticed in our “first seen URL” list, two URLs I didn&#x26;#39;t immediately recognize: This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Scans for Apache OfBiz, (Wed, Mar 27th)

ISC Stormcast For Wednesday, March 27th, 2024 https://isc.sans.edu/podcastdetail/8912, (Wed, Mar 27th)

2024-03-27 03:03

New tool: linux-pkgs.sh, (Sun, Mar 24th)

2024-03-26 14:03

During a recent Linux forensic engagement, a colleague asked if there was anyway to tell what packages were installed on a victim image. As we talk about in FOR577, depending on which tool you run on a live system and…

ISC Stormcast For Tuesday, March 26th, 2024 https://isc.sans.edu/podcastdetail/8910, (Tue, Mar 26th)

2024-03-26 03:03

Apple Updates for MacOS, iOS/iPadOS and visionOS, (Mon, Mar 25th)

2024-03-25 20:03

Last week, Apple published updates for iOS and iPadOS. At that time, Apple withheld details about the security content of the update. This is typical if future updates for other operating systems will fix the same vulnerability. Apple&#x26;#39;s operating systems…

Tool updates: le-hex-to-ip.py and sigs.py, (Sun, Mar 24th)

2024-03-25 04:03

I am TA-ing for Taz for the new SANS FOR577 class again and I figured it was time to release some fixes to my le-hex-to-ip.py script that I wrote up last fall while doing the same. I still plan to…

ISC Stormcast For Monday, March 25th, 2024 https://isc.sans.edu/podcastdetail/8908, (Mon, Mar 25th)

2024-03-25 03:03

1768.py’s Experimental Mode, (Sat, Mar 23rd)

2024-03-23 10:03

The reason I extracted a PE file in my last diary entry, is that I discovered it was the dropper of a Cobalt Strike beacon &#x26;#x40;DebugPrivilege had pointed me to. My 1768.py tool crashed on the process memory dump. This…

ISC Stormcast For Friday, March 22nd, 2024 https://isc.sans.edu/podcastdetail/8906, (Fri, Mar 22nd)

2024-03-22 03:03

Whois “geofeed” Data, (Thu, Mar 21st)

2024-03-21 17:03

Attributing a particular IP address to a specific location is hard and often fails miserably. There are several difficulties that I have talked about before: Out-of-date whois data, data that is outright fake, or was never correct in the first…

ISC Stormcast For Thursday, March 21st, 2024 https://isc.sans.edu/podcastdetail/8904, (Thu, Mar 21st)

2024-03-21 03:03

Scans for Fortinet FortiOS and the CVE-2024-21762 vulnerability, (Wed, Mar 20th)

2024-03-20 14:03

Late last week, an exploit surfaced on GitHub for CVE-2024-21762 &#x26;#x5b;1&#x26;#x5d;. This vulnerability affects&#x26;#xc2;&#x26;#xa0;Fortinet&#x26;#39;s FortiOS. A patch was released on February 8th. Owners of affected devices had over a month to patch &#x26;#x5b;2&#x26;#x5d;. A few days prior to the GitHub…

ISC Stormcast For Wednesday, March 20th, 2024 https://isc.sans.edu/podcastdetail/8902, (Wed, Mar 20th)

2024-03-20 03:03

Attacker Hunting Firewalls, (Tue, Mar 19th)

2024-03-19 14:03

Firewalls and other perimeter devices are a huge target these days. Ivanti, Forigate, Citrix, and others offer plenty of difficult-to-patch vulnerabilities for attackers to exploit. Ransomware actors and others are always on the lookout for new victims. However, being and…

ISC Stormcast For Tuesday, March 19th, 2024 https://isc.sans.edu/podcastdetail/8900, (Tue, Mar 19th)

2024-03-19 03:03

ISC Stormcast For Monday, March 18th, 2024 https://isc.sans.edu/podcastdetail/8898, (Mon, Mar 18th)

2024-03-18 03:03

Gamified Learning: Using Capture the Flag Challenges to Supplement Cybersecurity Training [Guest Diary], (Sun, Mar 17th)

2024-03-18 01:03

[This is a Guest Diary by Joshua Woodward, an ISC intern as part of the SANS.edu BACS program] This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Gamified Learning: Using Capture the Flag…

Obfuscated Hexadecimal Payload, (Sat, Mar 16th)

2024-03-17 02:03

This PE file contains an obfuscated hexadecimal-encoded payload. When I analyze it with base64dump.py searching for all supported encodings, a very long payload is detected: This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original…

ISC Stormcast For Friday, March 15th, 2024 https://isc.sans.edu/podcastdetail/8896, (Fri, Mar 15th)

2024-03-15 03:03

5Ghoul Revisited: Three Months Later, (Fri, Mar 15th)

2024-03-15 01:03

About three months ago, I wrote about the implications and impacts of 5Ghoul in a previous diary [1]. The 5Ghoul family of vulnerabilities could cause User Equipment (UEs) to be continuously exploited (e.g. dropping/freezing connections, which would require manual rebooting…

Increase in the number of phishing messages pointing to IPFS and to R2 buckets, (Thu, Mar 14th)

2024-03-14 10:03

Credential-stealing phishing is constantly evolving, nevertheless, some aspects of it â€“ by necessity â€“ stay the same. One thing, which is constant, is the need for a credential gathering mechanism, and although threat actors have come up with a number…

ISC Stormcast For Thursday, March 14th, 2024 https://isc.sans.edu/podcastdetail/8894, (Thu, Mar 14th)

2024-03-14 03:03

Using ChatGPT to Deobfuscate Malicious Scripts, (Wed, Mar 13th)

2024-03-13 09:03

Today, most of the malicious scripts in the wild are heavily obfuscated. Obfuscation is key to slow down the security analyst&#x26;#39;s job and to bypass simple security controls. They are many techniques available. Most of the time, your trained eyes…

ISC Stormcast For Wednesday, March 13th, 2024 https://isc.sans.edu/podcastdetail/8892, (Wed, Mar 13th)

2024-03-13 03:03

Microsoft Patch Tuesday – March 2024, (Tue, Mar 12th)

2024-03-12 19:03

This month&#x26;#39;s patches are oddly “light”. We have patches for 60 vulnerabilities and 4 Chromium patches affecting Microsoft Edge. But only two of the vulnerabilities are rated as “Critical”: This article has been indexed from SANS Internet Storm Center, InfoCON:…

ISC Stormcast For Tuesday, March 12th, 2024 https://isc.sans.edu/podcastdetail/8890, (Tue, Mar 12th)

2024-03-12 03:03

ISC Stormcast For Monday, March 11th, 2024 https://isc.sans.edu/podcastdetail/8888, (Mon, Mar 11th)

2024-03-11 03:03

What happens when you accidentally leak your AWS API keys? [Guest Diary], (Sun, Mar 10th)

2024-03-11 02:03

[This is a Guest Diary by Noah Pack, an ISC intern as part of the SANS.edu BACS program] This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: What happens when you accidentally leak…

ISC Stormcast For Friday, March 8th, 2024 https://isc.sans.edu/podcastdetail/8886, (Fri, Mar 8th)

2024-03-08 03:03

MacOS Patches (and Safari, TVOS, VisionOS, WatchOS), (Fri, Mar 8th)

2024-03-08 01:03

This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: MacOS Patches (and Safari, TVOS, VisionOS, WatchOS), (Fri, Mar 8th)

[Guest Diary] AWS Deployment Risks – Configuration and Credential File Targeting, (Thu, Mar 7th)

2024-03-07 14:03

&#x26;#x5b;This is a Guest Diary by Josh Lockwood, an ISC intern as part of the SANS.edu Bachelor&#x26;#39;s Degree in Applied Cybersecurity (BACS) program &#x26;#x5b;1]. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article:…

ISC Stormcast For Thursday, March 7th, 2024 https://isc.sans.edu/podcastdetail/8884, (Thu, Mar 7th)

2024-03-07 03:03

Scanning and abusing the QUIC protocol, (Wed, Mar 6th)

2024-03-06 10:03

The QUIC protocol has slowly (pun intended) crawled into our browsers and many other protocols. Last week, at BSides Zagreb I presented some research I did about applications using (and abusing) this protocol, so it made sense to put this…

ISC Stormcast For Wednesday, March 6th, 2024 https://isc.sans.edu/podcastdetail/8882, (Wed, Mar 6th)

2024-03-06 03:03

Apple Releases iOS/iPadOS Updates with Zero Day Fixes., (Tue, Mar 5th)

2024-03-05 20:03

Apple today released iOS 17.4 as well as iOS 16.7.6 (and the respective iPadOS versions). These updates fix a total of four vulnerabilities. Two of the vulnerabilities are already being exploited. CVE-2024-23225 is a privilege escalation issue and only affects…

Why Your Firewall Will Kill You, (Tue, Mar 5th)

2024-03-05 17:03

The last few years have been great for attackers exploiting basic web application vulnerabilities. Usually, home and small business products from companies like Linksys, D-Link, and Ubiquity are known to be favorite targets. But over the last couple of years,…

ISC Stormcast For Tuesday, March 5th, 2024 https://isc.sans.edu/podcastdetail/8880, (Tue, Mar 5th)

2024-03-05 03:03

ISC Stormcast For Monday, March 4th, 2024 https://isc.sans.edu/podcastdetail/8878, (Mon, Mar 4th)

2024-03-04 03:03

Capturing DShield Packets with a LAN Tap [Guest Diary], (Sun, Mar 3rd)

2024-03-04 01:03

[This is a Guest Diary by Christopher Von Reybyton, an ISC intern as part of the SANS.edu BACS program] This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Capturing DShield Packets with a…

ISC Stormcast For Friday, March 1st, 2024 https://isc.sans.edu/podcastdetail/8876, (Fri, Mar 1st)

2024-03-01 03:03

Scanning for Confluence CVE-2022-26134, (Fri, Mar 1st)

2024-03-01 01:03

I have added daemonlogger [1] for packet capture and Arkime [2] to visualize the packets captured by my DShield sensor and started noticing this activity that so far only gone to TCP/8090 which is URL and base64 encoded. The DShield…

[Guest Diary] Dissecting DarkGate: Modular Malware Delivery and Persistence as a Service., (Thu, Feb 29th)

2024-02-29 03:02

&#x26;#x5b;This is a Guest Diary by John Moutos, an ISC intern as part of the SANS.edu Bachelor&#x26;#39;s Degree in Applied Cybersecurity (BACS) program &#x26;#x5b;1]. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article:…

ISC Stormcast For Thursday, February 29th, 2024 https://isc.sans.edu/podcastdetail/8874, (Thu, Feb 29th)

2024-02-29 03:02

Exploit Attempts for Unknown Password Reset Vulnerability, (Wed, Feb 28th)

2024-02-28 16:02

My Google skills let me down this morning, attempting to figure out which vulnerability is exactly being exploited by these “forgotuserpassword.action” scans. Maybe someone else can help me out here. Based on the scans, I do not believe this is…

ISC Stormcast For Wednesday, February 28th, 2024 https://isc.sans.edu/podcastdetail/8872, (Wed, Feb 28th)

2024-02-28 03:02

Take Downs and the Rest of Us: Do they matter?, (Tue, Feb 27th)

2024-02-27 18:02

Last week, the US Department of Justice published a press release entitled “Justice Department Conducts Court-Authorized Disruption of Botnet Controlled by the Russian Federation&#x27s Main Intelligence Directorate of the General Staff (GRU)” [1]. The disruption targeted a botnet built using…

Takes Downs and the Rest of Us: Do they matter?, (Tue, Feb 27th)

2024-02-27 17:02

ISC Stormcast For Tuesday, February 27th, 2024 https://isc.sans.edu/podcastdetail/8870, (Tue, Feb 27th)

2024-02-27 03:02

Update: MGLNDD_* Scans, (Sat, Feb 24th)

2024-02-26 14:02

Almost 2 years ago, a reader asked us about TCP connections they observed. The data of these TCP connections starts with “MGLNDD_”: “MGLNDD_* Scans”. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article:…

Utilizing the VirusTotal API to Query Files Uploaded to DShield Honeypot [Guest Diary], (Sun, Feb 25th)

2024-02-26 14:02

[This is a Guest Diary by Keegan Hamlin, an ISC intern as part of the SANS.edu BACS program] This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Utilizing the VirusTotal API to Query…

ISC Stormcast For Monday, February 26th, 2024 https://isc.sans.edu/podcastdetail/8868, (Mon, Feb 26th)

2024-02-26 14:02

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