Category: SANS Internet Storm Center, InfoCON: green

YARA 4.5.1 Release, (Sun, May 26th)

YARA 4.5.0 was released with a small change to the regex syntax (allowing more whitespace) and many bugfixes. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: YARA 4.5.1 Release, (Sun, May 26th)

csvkit, (Sat, May 25th)

After reading my diary entry “Checking CSV Files”, a reader informed me that CSV toolkit csvkit also contains a command to check CSV files: csvstat.py. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original…

Analyzing MSG Files, (Mon, May 20th)

.msg email files are ole files and can be analyzed with my tool oledump.py. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Analyzing MSG Files, (Mon, May 20th)

Wireshark 4.2.5 Released, (Sat, May 18th)

Wireshark release 4.2.5 fixes 3 vulnerabilities (%%cve:2024-4853%%, %%cve:2024-4854%% and %%cve:2024-4855%%) and 19 bugs. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Wireshark 4.2.5 Released, (Sat, May 18th)

Why yq? Adventures in XML, (Thu, May 16th)

I was recently asked to “recover” a RADIUS key from a Microsoft NPS server.  No problem I think, just export the config and it's all there in clear text right? This article has been indexed from SANS Internet Storm Center,…

Got MFA? If not, Now is the Time!, (Wed, May 15th)

I had an interesting call from a client recently – they had a number of “net use” and “psexec” commands pop up on a domain controller, all called from PSEXEC (thank goodness for a good EDR deployed across the board!!).…

Microsoft May 2024 Patch Tuesday, (Tue, May 14th)

This month we got patches for 67 vulnerabilities. Of these, 1 are critical, and 1 is being exploited according to Microsoft. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Microsoft May 2024…

DNS Suffixes on Windows, (Sun, May 12th)

I was asked if I could provide mote details on the following sentence from my diary entry “nslookup's Debug Options”: This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: DNS Suffixes on Windows,…

Analyzing PDF Streams, (Thu, May 9th)

Occasionaly, Xavier and Jim will ask me specific students' questions about my tools when they teach FOR610: Reverse-Engineering Malware. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Analyzing PDF Streams, (Thu, May…

Analyzing Synology Disks on Linux, (Wed, May 8th)

Synology NAS solutions are popular devices. They are also used in many organizations. Their product range goes from small boxes with two disks (I&#x27m not sure they still sell a single-disk enclosure today) up to monsters, rackable with plenty of…

nslookup’s Debug Options, (Sun, May 5th)

A friend was having unexpected results with DNS queries on a Windows machine. I told him to use nslookup's debug options. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: nslookup’s Debug Options,…

D-Link NAS Device Backdoor Abused, (Mon, Apr 29th)

End of March, NetworkSecurityFish disclosed a vulnerability in various D-Link NAS devices [1]. The vulnerability allows access to the device using the user “messagebus” without credentials. The sample URL used by the PoC was: This article has been indexed from…

Rolling Back Packages on Ubuntu/Debian, (Tue, Apr 16th)

Package updates/upgrades by maintainers on the Linux platforms are always appreciated, as these updates are intended to offer new features/bug fixes. However, in rare circumstances, there is a need to downgrade the packages to a prior version due to unintended…

Building a Live SIFT USB with Persistence, (Fri, Apr 12th)

The SIFT Workstation[1] is a well-known Linux distribution oriented to forensics and incident response tasks. It is used in many SANS training as the default platform. This is also my preferred solution for my day-to-day DFIR activities. The distribution is…

April 2024 Microsoft Patch Tuesday Summary, (Tue, Apr 9th)

This update covers a total of 157 vulnerabilities. Seven of these vulnerabilities are Chromium vulnerabilities affecting Microsoft's Edge browser. However, only three of these vulnerabilities are considered critical. One of the vulnerabilities had already been disclosed and exploited. This article…

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

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…

Checking CSV Files, (Sun, Mar 31st)

Like Xavier (diary entry “Quick Forensics Analysis of Apache logs”), I too often have to analyze client'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)

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)

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

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

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

Today, I noticed in our “first seen URL” list, two URLs I didn'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)

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

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…

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

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 @DebugPrivilege had pointed me to. My 1768.py tool crashed on the process memory dump. This…

Whois “geofeed” Data, (Thu, Mar 21st)

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…

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

Late last week, an exploit surfaced on GitHub for CVE-2024-21762 [1]. This vulnerability affects Fortinet's FortiOS. A patch was released on February 8th. Owners of affected devices had over a month to patch [2]. A few days prior to the GitHub…