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

12/5/2019
12:00 PM
Dark Reading
Dark Reading
Products and Releases
50%
50%

Kaspersky finds ransomware now targeting back-up data

Woburn, MA – December 5, 2019 – Kaspersky researchers have identified a new type of ransomware attack targeting Network Attached Storage (NAS), which is actively growing in popularity. Targeting NAS poses new risks for back-up data usually stored on devices. With NAS largely perceived as a secure technology, users often remain unprepared for the possibility of infection, putting their data at higher risk. 

Encryption ransomware is a malware that applies advanced encryption methods so files cannot be decrypted without a unique key. This leaves the infected device owner stuck with a locked device and a demand to pay a ransom in order to regain access to files. While users are typically infected with ransomware via email or exploit-kits planted on websites, the new type of attacks on NAS devices use a different vector. Ransomware operators scan ranges of IP addresses looking for NAS devices accessible via the web. Although only web interfaces protected with authentication are accessible, a number of devices have integrated software with vulnerabilities in it. This allows the attackers to install a Trojan using exploits, which will then encrypt all data on the devices connected to the NAS.

“Previously, encryption ransomware targeting NAS was hardly evident in the wild, and this year alone we have already detected a number of new ransomware families focused solely on NAS,” said Fedor Sinitsyn, security researcher at Kaspersky. “This trend is unlikely to fade, as this attack vector proves to be very profitable for the attackers, especially due to the users being completely unprepared for them as they consider this technology highly reliable. NAS devices are usually purchased as complete and secure products, which as it turns out is not the case. Consumers and especially business users need to therefore remain cautious when protecting their data.”

During Q3 2019, Kaspersky products detected and repelled encryption ransomware attacks on 229,643 Kaspersky products users, which is 11% less than during the same period last year. Although the total number of affected users slightly decreased, the report shows that the number of new encryption ransomware modifications grew from 5,195 in Q3 2018 to 13,138 in Q3 2019 marking 153% growth. This development signals cybercriminal interest in this type of malware as means of enrichment.

At the same time, the infamous WannaCry Trojan family retained first place among the most popular Trojans with over a fifth of attacked users having been targeted with malware identified as belonging to this group. The top three most popular verdicts that account for almost half of users attacked by cryptors were Trojan-Ransom.Win32.Wanna (20.96% users attacked), Trojan-Ransom.Win32.Phny (20.01%) and Trojan-Ransom.Win32.GandCrypt (8.58%).

Other report findings include:

  • Kaspersky detected and repelled 989,432,403 malicious attacks from online resources located in around 200 countries and territories around the world (4% growth compared to Q3 2018)
  • Attempted malware infections that aim to steal money via online access to bank accounts were registered on 197,559 user computers (35% decline compared to Q3 2018)
  • Kaspersky’s antivirus file detected a total of 230,051,054 unique malicious and potentially unwanted objects (4% decrease compared to Q3 2018)
  • Kaspersky mobile security products also detected 870,617 malicious installation packages (33% decrease compared to Q3 2018)

 

Read the full version of the Kaspersky’s IT Threat Evolution Report Q3 2019 on Securelist.com.

 

 

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 6/1/2020
Stay-at-Home Orders Coincide With Massive DNS Surge
Robert Lemos, Contributing Writer,  5/27/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: "Well I dont run on MacOS, so I need to take extra precautions"
Current Issue
How Cybersecurity Incident Response Programs Work (and Why Some Don't)
This Tech Digest takes a look at the vital role cybersecurity incident response (IR) plays in managing cyber-risk within organizations. Download the Tech Digest today to find out how well-planned IR programs can detect intrusions, contain breaches, and help an organization restore normal operations.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-13659
PUBLISHED: 2020-06-02
address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.
CVE-2020-10703
PUBLISHED: 2020-06-02
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like ...
CVE-2020-10739
PUBLISHED: 2020-06-02
Istio 1.4.x before 1.4.9 and Istio 1.5.x before 1.5.4 contain the following vulnerability when telemetry v2 is enabled: by sending a specially crafted packet, an attacker could trigger a Null Pointer Exception resulting in a Denial of Service. This could be sent to the ingress gateway or a sidecar, ...
CVE-2020-10136
PUBLISHED: 2020-06-02
Multiple products that implement the IP Encapsulation within IP standard (RFC 2003, STD 1) decapsulate and route IP-in-IP traffic without any validation, which could allow an unauthenticated remote attacker to route arbitrary traffic via an exposed network interface and lead to spoofing, access cont...
CVE-2020-13757
PUBLISHED: 2020-06-01
Python-RSA 4.0 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing exces...