Category: SANS™ Internet Storm Center

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Last week, Watchtowr Labs released details describing a new and so far unpatched vulnerability in Citrix's remote access solution [1]. Specifically, the vulnerability affects the "Virtual Apps and Desktops." This solution allows "secure" remote access to

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

There are so many vulnerabilities in commonly used routers that attackers often leave many easily exploited vulnerabilities untouched, as they already have plenty of vulnerabilities to exploit.  Looking today at our "First Seen URL" page, I

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

This month, Microsoft is addressing a total of 83 vulnerabilities. Among these, 3 are classified as critical, 2 have been exploited in the wild, and another 2 have been disclosed prior to Patch Tuesday. Organizations are

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

The first thing to do, when analyzing a potentially malicious PDF, is to look for the /Encrypt name as explained in diary entry Analyzing an Encrypted Phishing PDF. The second thing to do, is to look

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

In yesterday's diary entry "zipdump & Evasive ZIP Concatenation" I showed how one can inspect the PKZIP records that make up a ZIP file. My tool zipdump.py can also inspect the data of PKZIP file records,