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Computer System Security (CSS) Unit 1 | Full Explanation | Part 1 | AKTU | Exams | Unique AppSites



New Rorschach ransomware hits with unique features and very fast encryption


Researchers warn of a new strain of ransomware dubbed Rorschach that doesn’t appear to be related to previously known threats and uses several unique features in its implementation, including one of the fastest file encryption routines observed so far.

“A behavioral analysis of the new ransomware suggests it is partly autonomous, spreading itself automatically when executed on a domain controller (DC) while it clears the event logs of the affected machines,” researchers from security firm Check Point said in a new report. “In addition, it’s extremely flexible, operating not only based on a built-in configuration but also on numerous optional arguments which allow it to change its behavior according to the operator’s needs.”

The Check Point researchers came across the ransomware strain while responding to a security incident at a US-based company. Later they realized that researchers from South Korean security firm AhnLab had previously documented a variant in February, but attributed it to the known DarkSide ransomware operation. Check Point believes this is incorrect and the confusion might be because there were similarities in the ransom notes dropped by the two threats, but not in every case. In other incidents, Rorschach dropped a ransom note similar to one used by another ransomware program, Yanluowang.

The variety in behavior exhibited by this ransomware program, which seems to have borrowed techniques and code from various other ransomware threats, led to the Check Point researchers naming it Rorschach after the popular psychological test where subjects can have different perceptions of the same inkblots shown to them.

Rorschach features DLL side-loading

In the incident investigated by Check Point, Rorschach was executed by exploiting a DLL side-loading vulnerability in a component of the Palo Alto Network’s Cortex XDR, a commercial security product. Specifically, the attackers dropped a copy of the Cortex XDR Dump Service Tool version 7.3.0.16740 together with a file named winutils.dll that serves as a loader for the ransomware.

DLL side-loading is a technique in which attackers plant a malicious DLL library with a particular name…

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Computer System Security (CSS) Unit 1 Quick Revision | AKTU | Unique AppSites



Verizon’s suite of unique 5G features to be available at Indy 500


The wireless network company has announced the exclusive features available to attendees of the biggest race in F1.

verizon-at-mwc.jpg
Image: Roger Cheng/CNET

As experienced at the Miami Grand Prix earlier this month, Verizon is once again offering access to its 5G Ultra Wideband network for both fans in attendance and ones watching from home as Formula One gears up for the premiere event in its sport this weekend. Over 300,000 attendees are expected at the 109th running of the Indianapolis 500 race, with exclusive features being offered to fans no matter where they are located.

5G on the speedway

“With 5G Ultra Wideband’s massive capacity, low latency and super-fast speeds, we’re giving racing fans new immersive experiences that will let them personalize how they’re watching the race whether they’re at the track or at home,” said Srini Kalapala, Senior Vice President of Verizon Technology and Product Development. “Verizon 5G Ultra Wideband has the area covered so attendees can stream, tweet, and share their experiences quickly and reliably. In fact, in all of Indianapolis, 52 percent of Verizon’s network traffic is on 5G Ultra Wideband.”

Through the use of Verizon’s 5G Multi-View, F1 fans will be able to experience the Indy 500 through numerous unique camera views. The wireless company says fans will be able to see the competition through seven different perspectives that will be broadcast in high definition via the company’s Ultra Wideband network. One view being offered to attendees will even be a live feed of the NBC broadcast for commentary and insights on the race.

SEE: Mobile Device Security Policy (TechRepublic Premium)

Augmented reality drives 360 views from home

An AR portal will give fans at home an exclusive, all-encompassing view of the event whether it’s taking place either on the track or in the pits, powered by Verizon’s 5G Ultra Pass. This portal will give the audience watching abroad a 360-degree view of the action with a number of different camera angles, giving fans the chance to customize their viewing experience wherever they are watching from.

“Verizon’s 5G Ultra Wideband network is providing fans at IMS and around…

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