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.

Attacks/Breaches

12/2/2015
12:15 PM
Connect Directly
Twitter
RSS
E-Mail
50%
50%

CryptoWall 4.0 Spreading Via Angler Drive-By Download Campaign

Sweet-talking ransomware making rounds in attacks originating from Ukraine-based hosts.

CryptoWall 4.0, the newest version of the CryptoWall ransomware, is being packed into the Angler exploit kit and spreading through a new drive-by download campaign, according to researchers at Heimdal Security

Heimdal first discovered CryptoWall 4.0 in the wild just one month ago. It's stealthier than earlier versions of the ransomware -- it encrypts not just files, but filenames too.

It also uses a strikingly different ransom message. Instead of demanding payment and trying to frighten the user, the new variant tries to convince a user to buy a $700 "software package" and delivers veiled threats within a message that begins "Congratulations! You have become a part of large community CryptoWall!" 

The new attack campaign uses what Heimdal calls a "stack of drive-by campaigns," that hit the victim with multiple payloads, including the Pony information stealer, the Angler exploit kit, and ultimately, CryptoWall. 

The victim is first hit the the Pony information stealer, which scrapes all the usernames and passwords it can find off the victim's system and sends them back to the attackers command-and-control server. Heimdal researchers state that the purpose is to find credentials for Web servers or content management systems and use them to inject malicious scripts into new sites, thus further broadening the attack campaign.

The victim is then redirected to another site that drops Angler, which scans the system for vulnerabilities and feeds it CryptoWall 4.0.

Heimdal has found over 200 new domains being used by attackers in the past 24 hours alone. The campaign originates from a hosting environment in the Ukraine, and has thusfar hit websites in Denmark particularly hard -- over 100 sites there have been injected with malware.

Sara Peters is Senior Editor at Dark Reading and formerly the editor-in-chief of Enterprise Efficiency. Prior that she was senior editor for the Computer Security Institute, writing and speaking about virtualization, identity management, cybersecurity law, and a myriad ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
US Turning Up the Heat on North Korea's Cyber Threat Operations
Jai Vijayan, Contributing Writer,  9/16/2019
MITRE Releases 2019 List of Top 25 Software Weaknesses
Kelly Sheridan, Staff Editor, Dark Reading,  9/17/2019
Preventing PTSD and Burnout for Cybersecurity Professionals
Craig Hinkley, CEO, WhiteHat Security,  9/16/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
7 Threats & Disruptive Forces Changing the Face of Cybersecurity
This Dark Reading Tech Digest gives an in-depth look at the biggest emerging threats and disruptive forces that are changing the face of cybersecurity today.
Flash Poll
The State of IT Operations and Cybersecurity Operations
The State of IT Operations and Cybersecurity Operations
Your enterprise's cyber risk may depend upon the relationship between the IT team and the security team. Heres some insight on what's working and what isn't in the data center.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-14821
PUBLISHED: 2019-09-19
An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->l...
CVE-2019-15032
PUBLISHED: 2019-09-19
Pydio 6.0.8 mishandles error reporting when a directory allows unauthenticated uploads, and the remote-upload option is used with the http://localhost:22 URL. The attacker can obtain sensitive information such as the name of the user who created that directory and other internal server information.
CVE-2019-15033
PUBLISHED: 2019-09-19
Pydio 6.0.8 allows Authenticated SSRF during a Remote Link Feature download. An attacker can specify an intranet address in the file parameter to index.php, when sending a file to a remote server, as demonstrated by the file=http%3A%2F%2F192.168.1.2 substring.
CVE-2019-16412
PUBLISHED: 2019-09-19
In goform/setSysTools on Tenda N301 wireless routers, attackers can trigger a device crash via a zero wanMTU value. (Prohibition of this zero value is only enforced within the GUI.)
CVE-2019-16510
PUBLISHED: 2019-09-19
libIEC61850 through 1.3.3 has a use-after-free in MmsServer_waitReady in mms/iso_mms/server/mms_server.c, as demonstrated by server_example_goose.