Threat Intelligence

5/19/2017
11:32 AM
50%
50%

Researcher Creates Tool to Unlock WannaCry-Infected Windows XP Files

A security researcher appears to have discovered a flaw in WannaCry that may provide Windows XP victims of the attack with a way to unlock their files.

A French security researcher has reportedly found a potential rescue tool for Windows XP WannaCry victims after discovering a flaw in the malware, according to various published reports.

Adrien Guinet of QuarksLab in Paris released a potential fix in Github, which relies on snagging private key traces from the infected computer's memory to decrypt the files, according to a report in Wired. But there is a caveat: the potential fix may fail if the malware, or other processes, overwrote the decryption key traces, or if the user rebooted the computer after the infection, according to Wired.

Other security researchers have had mixed results in testing Guinet's WannaCry workaround, with some saying it did not work when they tested it and others noting Guinet appears to have found a legitimate flaw in WannaCry.

Read more about Guinet here.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Crowdsourced vs. Traditional Pen Testing
Alex Haynes, Chief Information Security Officer, CDL,  3/19/2019
BEC Scammer Pleads Guilty
Dark Reading Staff 3/20/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: Well, at least it isn't Mobby Dick!
Current Issue
5 Emerging Cyber Threats to Watch for in 2019
Online attackers are constantly developing new, innovative ways to break into the enterprise. This Dark Reading Tech Digest gives an in-depth look at five emerging attack trends and exploits your security team should look out for, along with helpful recommendations on how you can prevent your organization from falling victim.
Flash Poll
The State of Cyber Security Incident Response
The State of Cyber Security Incident Response
Organizations are responding to new threats with new processes for detecting and mitigating them. Here's a look at how the discipline of incident response is evolving.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-9923
PUBLISHED: 2019-03-22
pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.
CVE-2019-9924
PUBLISHED: 2019-03-22
rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.
CVE-2019-9925
PUBLISHED: 2019-03-22
S-CMS PHP v1.0 has XSS in 4.edu.php via the S_id parameter.
CVE-2019-9927
PUBLISHED: 2019-03-22
Caret before 2019-02-22 allows Remote Code Execution.
CVE-2019-9936
PUBLISHED: 2019-03-22
In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5_hash.c.