This article was co-authored by Hui Wang and RootKiter. Since September 2018, 360Netlab Scanmon has detected multiple scan spikes on TCP port 5431, each time the system logged more than 100k scan sources, a pretty large number compared with most other botnets we have covered before. The interaction between the
note:We have informed various ISPs on the IoC list, and OVH, ORACLE, Google, Microsoft have taken down the related IPs and some others are working on it (Thanks!) Background introduction DNSchanger is not something new and was quite active years ago , we occasionally encountered one every once in
Author: Zhang Zaifeng, yegenshen, RootKiter, JiaYu On July 18, in an officially released routine patch update, Oracle fixed CVE-2018-2893, an Oracle WebLogic Server remote code execution vulnerability. Three days later, at 2018-07-21 11:24:31 GMT+8, we noticed that a malicious campaign that we have been tracking for a
Author: Rootkiter, yegenshen HNS is an IoT botnet (Hide and Seek) originally discovered by BitDefender in January this year. In that report, the researchers pointed out that HNS used CVE-2016-10401, and other vulnerabilities to propagate malicious code and stole user information. The HNS communicates through the P2P mechanism, which is
This article was co-authored by Hui Wang, LIU Ya, Rootkiter and Yegenshen. In our previous articles I and II of this series, we mentioned that since the expose of the GPON vulnerabilities (CVE-2018-10561, CVE-2018-10562), there have been at least five botnet families actively exploiting this vulnerability to build their bot
This article was co-authored by Rootkiter, Yegenshen, and Hui Wang. In our previous article, we mentioned since this GPON Vulnerability (CVE-2018-10561, CVE-2018-10562 ) announced, there have been at least five botnets family mettle, muhstik, mirai, hajime, satori actively exploit the vulnerability to build their zombie army in just 10 days. We
On May 1st, VPN Mentor disclosed two vulnerabilities against GPON home router. Since then, at least 5 botnet families have been actively exploiting the vulnerability to build their zombie corps, including mettle, muhstik, mirai, hajime and satori. It is the first time we have seen so many botnets competing for
On March 28, 2018, drupal released a patch for CVE-2018-7600. Drupal is an open-source content management system written in PHP, quite popular in many sites to provide web service. This vulnerability exists in multiple drupal versions, which may be exploited by an attacker to take full control of the target.
This blog is a joint effort of 360 0kee Team, 360 CERT, and 360 Netlab. Memcache UDP Reflection Amplification DDoS (hereinafter referred as Memcache DRDoS) has attracted quite some attentions from security community this week. We are not going to repeat the public known facts, and this blog will only
We recently noticed that one of the ad network provider started to perform in-browser coinhive cryptojacking when users visit websites which use this provider’s ad network service. As early as mid 2017, this ad network provider has been using domain DGA technology to generate seemingly random domains to bypass
At 360Netlab, we are continuously analyzing DNS traffic. Based on this, we have established a DNSMon detection system that analyzes various anomalies and correlations in DNS traffic. We reported a few web mining sites such as openload.co in previous article. After that, we try to use DNSMon to further
This blog is a joint effort of 360 Beaconlab, 360 CERT, 360 MobileSafe, 360Netlab and 360 Threat Intelligence Center. Overview About 48 hours ago, we reported an Android worm ADB.miner in our previous blog. This malware can replicate itself over Android devices by utilizing the opened ADB debugging interface.
[Updates on 2017-11-28] * Both C2s have been sink-holed now by security community. * admin/CentryL1nk is a typo for admin/CenturyL1nk. About 60 hours ago, since 2017-11-22 11:00, we noticed big upticks on port 2323 and 23 scan traffic, with almost 100k unique scanner IP came from Argentina. After investigation,