Vulnerabilities / Threats

10/26/2017
04:40 PM
Connect Directly
Google+
Twitter
RSS
E-Mail
50%
50%

Bad Rabbit Used Pilfered NSA Exploit

Turns out the fast and furious ransomware campaign in Eastern Europe this week employed the so-called 'BadRomance' tool to help it spread.

The fast and furious Bad Rabbit ransomware campaign on Oct. 24 had security researchers frantically studying their telemetry and malware to discern the anatomy of the attack. The initial take was that although it uses retooled code from predecessors Petya and NotPetya, it didn't spread via any exploits like WannaCry, for example.

But today, Cisco Systems' Talos research group said it now can confirm that the ransomware attack used a version of the so-called EternalRomance exploit to spread. This exploit, which comes from a stolen and leaked trove of NSA tools, was the tool Nyetya (aka Petrwrap and Goldeneye) ransomware attacks this summer employed to spread laterally within a victim organization.

The ransomware campaign hit hundreds of government, media, transportation, and other targets in 15 nations, including Russia's Interfax Agency and Fontanka, and Ukraine's Kiev Metro, its Odessa International Airport, and various ministries of infrastructure and finance. Russian victims were the biggest targets, accounting for 71% of detections by security firm Avast.

Security researchers from all over the world are still performing postmortems on the attack, and there's still some debate over who was behind the attack as well as over the malware's roots. 

As of yesterday, researchers had pinpointed a hardcoded credentials list and Mimikatz password-extraction method as the method of Bad Rabbit's spread, wormlike, via SMB local networks. 

EternalRomance was yet another method of spreading Bad Rabbit, directly via the SMB hole, according to Cisco's newest finding.

"This is still an active investigation," says Nick Biasini, a threat researcher with Cisco's Talos team. "During analysis by some of our reverse engineers we were able to identify that an exploit was included in Bad Rabbit ... Initially there was no indication it was being used and no one had publicly observed the exploit being utilized in the wild.  It wasn’t until the discovery by one of our reverse engineers that it was uncovered."

Meanwhile, Group IB, a Russian security firm studying the attacks, today noted that Bad Rabbit was first dropped via drive-by downloads onto victim machines via various media websites in Russia and Ukraine. The researchers also say it's "highly likely" the attackers behind Bad Rabbit are the same ones who launched NotPetya in June of 2017 against Ukraine energy, financial, and telecommunciations organizations.

"BadRabbit has same functions for computing hashes, network distribution logic and logs removal process, etc.," as NotPetya, they wrote in an update today.

Related Content:

 

Join Dark Reading LIVE for two days of practical cyber defense discussions. Learn from the industry’s most knowledgeable IT security experts. Check out the INsecurity agenda here.

Kelly Jackson Higgins is Executive Editor at DarkReading.com. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
WebAuthn, FIDO2 Infuse Browsers, Platforms with Strong Authentication
John Fontana, Standards & Identity Analyst, Yubico,  9/19/2018
Turn the NIST Cybersecurity Framework into Reality: 5 Steps
Mukul Kumar & Anupam Sahai, CISO & VP of Cyber Practice and VP Product Management, Cavirin Systems,  9/20/2018
NSS Labs Files Antitrust Suit Against Symantec, CrowdStrike, ESET, AMTSO
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/19/2018
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: "I'm not sure I like this top down management approach!"
Current Issue
Flash Poll
The Risk Management Struggle
The Risk Management Struggle
The majority of organizations are struggling to implement a risk-based approach to security even though risk reduction has become the primary metric for measuring the effectiveness of enterprise security strategies. Read the report and get more details today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2018-17332
PUBLISHED: 2018-09-22
An issue was discovered in libsvg2 through 2012-10-19. The svgGetNextPathField function in svg_string.c returns its input pointer in certain circumstances, which might result in a memory leak caused by wasteful malloc calls.
CVE-2018-17333
PUBLISHED: 2018-09-22
An issue was discovered in libsvg2 through 2012-10-19. A stack-based buffer overflow in svgStringToLength in svg_types.c allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact because sscanf is misused.
CVE-2018-17334
PUBLISHED: 2018-09-22
An issue was discovered in libsvg2 through 2012-10-19. A stack-based buffer overflow in the svgGetNextPathField function in svg_string.c allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact because a strncpy copy limit is miscalculated.
CVE-2018-17336
PUBLISHED: 2018-09-22
UDisks 2.8.0 has a format string vulnerability in udisks_log in udiskslogging.c, allowing attackers to obtain sensitive information (stack contents), cause a denial of service (memory corruption), or possibly have unspecified other impact via a malformed filesystem label, as demonstrated by %d or %n...
CVE-2018-17321
PUBLISHED: 2018-09-22
An issue was discovered in SeaCMS 6.64. XSS exists in admin_datarelate.php via the time or maxHit parameter in a dorandomset action.