Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Database Security
Authentication
Mobile
Privacy
Compliance
Careers and People
Identity & Access Management
Security Monitoring
Advanced Threats
Insider Threats
Vulnerability Management
Comments
With $325 Million In Extorted Payments CryptoWall 3 Highlights Ransomware Threat
Newest First  |  Oldest First  |  Threaded View
theb0x
theb0x,
 User Rank: Ninja
11/4/2015 | 3:03:56 PM
Re: Back up your data!
There is a more simpler solution to protecting your data other than just backups.

Encrypt your data. CryptoWall can't encrypt files that are already encrypted by the end user.

The data can be decrypted on access which would lock the files currently opened. When the file is closed it is

automatically re-encrypted in realtime. As an extra layer of security it is also possible to encrypt volume shadow

copies of the files as the behavior of CryptoWall will automatically sdelete (Secure Delete) all shadow copy data

on the infected machine. I am no way suggesting not to backup your data. However, a proper retention policy

should also be correctly set to seven or more days. If a backup whether it be to a local, network drive, or cloud

based is not encrypted there remains the risk of the files being encrypted by the ransomware and changes of

modified files by CryptoWall propagating and overwriting the original backup of end user data. Also, CrytoWall

only affects files by extention (ie .docx, .qbw, .xlsx) If a file extention is modified to something completely

obscure in no relation with any application they will remain unaffected by this ransomware. 
SgS125
SgS125,
 User Rank: Ninja
11/2/2015 | 10:51:53 AM
accuracy of amount in question?
According to Howard, the researchers were able to track $325 million in ransom payments through the Bitcoin system. "Our estimate is conservatively low. We think it could easily be double that number but did not have the direct evidence to claim it."

 

So really you could say that is was only half as much with just as much confidence?

I often wonder where the numbers for this come from,  a guess may not be very newsworthy.

What evidence is there to prove it one way or another?
RyanSepe
RyanSepe,
 User Rank: Ninja
10/31/2015 | 5:00:34 PM
Enterprise Level
How prevalent is Ransomware at the enterprise level with network drives? Are they affected in the same way a regular endpoint will be?
RyanSepe
RyanSepe,
 User Rank: Ninja
10/31/2015 | 4:59:14 PM
Back up your data!
Please people, perform due diligence and don't let ransomware cripple us. Back up your data to a another source regularly. Make sure your OS has default backup settings enabled such as Windows "Previous Versions". This could save tons of money and headaches.


Edge-DRsplash-10-edge-articles
I Smell a RAT! New Cybersecurity Threats for the Crypto Industry
David Trepp, Partner, IT Assurance with accounting and advisory firm BPM LLP,  7/9/2021
News
Attacks on Kaseya Servers Led to Ransomware in Less Than 2 Hours
Robert Lemos, Contributing Writer,  7/7/2021
Commentary
It's in the Game (but It Shouldn't Be)
Tal Memran, Cybersecurity Expert, CYE,  7/9/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Improving Enterprise Cybersecurity With XDR
Enterprises are looking at eXtended Detection and Response technologies to improve their abilities to detect, and respond to, threats. While endpoint detection and response is not new to enterprise security, organizations have to improve network visibility, expand data collection and expand threat hunting capabilites if they want their XDR deployments to succeed. This issue of Tech Insights also includes: a market overview for XDR from Omdia, questions to ask before deploying XDR, and an XDR primer.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2022-2316
PUBLISHED: 2022-07-06
HTML injection vulnerability in secure messages of Devolutions Server before 2022.2 allows attackers to alter the rendering of the page or redirect a user to another site.
CVE-2022-2318
PUBLISHED: 2022-07-06
There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges.
CVE-2022-33047
PUBLISHED: 2022-07-06
OTFCC v0.10.4 was discovered to contain a heap buffer overflow after free via otfccbuild.c.
CVE-2022-31111
PUBLISHED: 2022-07-06
Frontier is Substrate's Ethereum compatibility layer. In affected versions the truncation done when converting between EVM balance type and Substrate balance type was incorrectly implemented. This leads to possible discrepancy between appeared EVM transfer value and actual Substrate value transferre...
CVE-2022-31124
PUBLISHED: 2022-07-06
openssh_key_parser is an open source Python package providing utilities to parse and pack OpenSSH private and public key files. In versions prior to 0.0.6 if a field of a key is shorter than it is declared to be, the parser raises an error with a message containing the raw field value. An attacker a...