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March 2019’s Most Wanted Malware: Coinhive Closed Down, Cryptomining Still Dominates

Check Point Research has published its latest Global Threat Index for March 2019. The index reveals that while cryptomining services such as Coinhive have closed down, cryptominers are still the most prevalent malware aimed at organizations globally.

Cryptomining Malware

As announced last month, both Coinhive and Authedmine stopped their mining services on March 8th. For the first time since December 2017, Coinhive dropped from the top position but, despite having only operated for eight days in March, it was still the 6th most prevalent malware to affect organizations during the month. At its peak, Coinhive impacted 23% of organizations worldwide.

Many websites still contain the Coinhive JavaScript code today, though with no mining activity taking place. Check Point’s researchers warn that Coinhive may well reactivate if the value of Monero increases. Alternatively, other mining services may increase their activity to take advantage of Coinhive’s absence.

During March, three of the top five most prevalent malware were cryptominers – Cryptoloot, XMRig and JSEcoin. Cryptoloot headed the Threat Index for the first time, closely followed by Emotet, the modular trojan. Both had a global impact of 6%. XMRig is the third most popular malware impacting 5% of organizations worldwide.

Maya Horowitz, Threat Intelligence and Research Director at Check Point commented, “With cryptocurrencies’ values dropping overall since 2018, we will be seeing more cryptominers for browsers following Coinhive’s steps and ceasing operation. However, I suspect that cybercriminals will find ways to earn from more robust cryptomining activities, such as mining on Cloud environments, where the built-in auto-scaling feature allows the creation of a larger haul of cryptocurrency.  We have seen organizations being asked to pay hundreds of thousands of dollars to their Cloud vendors for the compute resources used illicitly by cryptominers. This is a call for action for organizations to secure their Cloud environments.”

March 2019’s Top 3 ‘Most Wanted’ Malware:

*The arrows relate to the change in rank compared to the previous month.

  1. Cryptoloot – Crypto-Miner that uses the victim’s CPU or GPU power and existing resources for crypto mining – adding transactions to the blockchain and releasing new currency. It is a competitor to Coinhive, trying to pull the rug under it by asking a smaller percentage of revenue from websites.
  2. ↑ Emotet– Advanced, self-propagate and modular Trojan. Emotet once used to employ as a banking Trojan, and recently is used as a distributor to other malware or malicious campaigns. It uses multiple methods for maintaining persistence and evasion techniques to avoid detection. In addition, it can be spread through phishing spam emails containing malicious attachments or links.
  3. ↑ XMRig- Open-source CPU mining software used for the mining process of the Monero cryptocurrency, and first seen in-the-wild on May 2017.

This month Hiddad is the most prevalent Mobile malware, replacing Lotoor at first place in the top mobile malware list. Triada remains in third place.

March’s Top 3 ‘Most Wanted’ Mobile Malware:

  1. Hiddad – Android malware which repackages legitimate apps and then released them to a third-party store. Its main function is displaying ads, however, it is also able to gain access to key security details built into the OS, allowing an attacker to obtain sensitive user data.
  2. Lotoor– Hack tool that exploits vulnerabilities on the Android operating system in order to gain root privileges on compromised mobile devices.
  3. Triada – Modular Backdoor for Android which grants superuser privileges to downloaded malware, as helps it to get embedded into system processes. Triada has also been seen spoofing URLs loaded in the browser.

Check Point’s researchers also analyzed the most exploited cyber vulnerabilities. CVE-2017-7269 is still leading the top exploited vulnerabilities with a 44% global impact. Web Server Exposed Git Repository Information Disclosure and is in second place, with OpenSSL TLS DTLS Heartbeat Information Disclosure in third, both impacting 40% of organizations worldwide.

March’s Top 3 ‘Most Exploited’ vulnerabilities:

  1. ↔ Microsoft IIS WebDAV ScStoragePathFromUrl Buffer Overflow (CVE-2017-7269)– By sending a crafted request over a network to Microsoft Windows Server 2003 R2 through Microsoft Internet Information Services 6.0, a remote attacker could execute arbitrary code or cause a denial of service conditions on the target server. That is mainly due to a buffer overflow vulnerability resulted by improper validation of a long header in HTTP request.
  2. ↑ Web Server Exposed Git Repository Information Disclosure– An information disclosure vulnerability has been reported in Git Repository. Successful exploitation of this vulnerability could allow an unintentional disclosure of account information.
  3. ↑ OpenSSL TLS DTLS Heartbeat Information Disclosure (CVE-2014-0160; CVE-2014-0346)– An information disclosure vulnerability exists in OpenSSL. The vulnerability is due to an error when handling TLS/DTLS heartbeat packets. An attacker can leverage this vulnerability to disclose memory contents of a connected client or server.

Check Point’s Global Threat Impact Index and its ThreatCloud Map is powered by Check Point’s ThreatCloud intelligence, the largest collaborative network to fight cybercrime which delivers threat data and attack trends from a global network of threat sensors. The ThreatCloud database holds over 250 million addresses analyzed for bot discovery, more than 11 million malware signatures and over 5.5 million infected websites, and identifies millions of malware types daily.

The below table gives an understanding of how India is faring in terms of malware attacks as compared to global counterparts.

Top 10 Malware| India

Malware_Family_Name Description Global Impact Country Impact
XMRig XMRig is an open-source CPU mining software used for the mining process of the Monero cryptocurrency, and first seen in-the-wild on May 2017. 7.68% 22.64%
Coinhive Crypto Miner designed to perform online mining of Monero cryptocurrency when a user visits a web page without the user’s approval. The implanted JS uses great computational resources of the end users machines to mine coins, thus impacting its performance. 11.59% 21.40%
Dorkbot IRC-based Worm designed to allow remote code execution by its operator, as well as the download of additional malware to the infected system, with the primary motivation being to steal sensitive information and launch denial-of-service attacks. 3.75% 12.04%
Jsecoin JavaScript miner that can be embedded in websites. With JSEcoin, you can run the miner directly in your browser in exchange for an ad-free experience, in-game currency and other incentives. 5.57% 11.52%
Cryptoloot cryptominer malware, using the victim’s CPU or GPU power and existing resources for crypto mining – adding transactions to the blockchain and releasing new currency. It is a competitor to Coinhive. 6.23% 10.03%
Emotet Advanced, self-propagating and modular Trojan. Emotet used to operate as a banking Trojan, and has evolved to be used as a distributer of other malware or malicious campaigns. It uses multiple methods and evasion techniques for maintaining persistence and avoiding detection. In addition, it can be spread through phishing spam emails containing malicious attachments or links. 5.14% 7.75%
Virut Virut is one of the major botnets and malware distributors in the Internet. It is used in DDoS attacks, spam distribution, data theft and fraud. The malware is spread through executables originating from infected devices. 1.71% 7.55%
Ramnit Ramnit is a worm that infects and spreads mostly through removable drives and files uploaded to public FTP services. The malware creates a copy of itself to infect removable and permanent drivers. The malware also functions as a backdoor. 2.57% 7.24%
Nitol Nitol is a Bot agent that targets the Windows platform. This malware collects basic system information and sends it to a remote server. An attacker can instruct the remote server to respond with commands primarily designed to carry out DoS attacks 1.05% 7.13%
Fireball Fireball is an adware vastly distributed by the Chinese digital marketing company Rafotech. It acts as a browser-hijacker which changes the default search engine and installs tracking pixels, but can be turned into a full-functioning malware downloader. 1.68% 6.36%

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Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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