Necromporph - 360 Netlab Blog - Network Security Research Lab at 360

Necromporph

A collection of 3 posts

Gafgtyt_tor，Necro作者再次升级“武器库”

版权版权声明: 本文为Netlab原创，依据CC BY-SA 4.0 许可证进行授权，转载请附上出处链接及本声明。概述自2021年2月15号起，360Netlab的BotMon系统持续检测到Gafgyt家族的一个新变种，它使用Tor进行C2通信以隐藏真实C2，并对样本中的敏感字符串做了加密处理。这是我们首次发现使用Tor机制的Gafgyt变种，所以将该变种命名为Gafgyt_tor。进一步分析发现该家族与我们1月份公开的Necro家族有紧密联系，背后为同一伙人，即所谓的keksec团伙[1] [2]。检索历史样本发现该团伙长期运营Linux IoT botnet，除了Necro和Gafgyt_tor，他们还曾运营过Tsunami和其它Gafgyt变种botnet。本文将介绍Gafgyt_tor，并对该团伙近期运营的其它botnet做一梳理。本文关键点如下： 1. Gafgyt_tor使用Tor来隐藏C2通信，可内置100多个Tor代理，并且新样本在持续更新代理列表。 2. Gafgyt_tor跟keksec团伙之前分发的Gafgyt样本同源，核心功能依

Gafgtyt_tor and Necro are on the move again

Overview Since February 15, 2021, 360Netlab's BotMon system has continuously detected a new variant of the Gafgyt family, which uses Tor for C2 communication to hide the real C2 and encrypts sensitive strings in the samples. This is the first time we found a Gafgyt variant using the

Necro is going to version 3 and using PyInstaller and DGA

Overview. Necro is a classic family of botnet written in Python that was first discovered in 2015, at the beginning, it targeted Windows systems and often tagged by security vendors as Python.IRCBot and called N3Cr0m0rPh (Necromorph) by the author himself. Since January 1, 2021, 360Netlab's BoTMon system