Overview On August 2, 2017, ANTIY discovered a new DDoS trojan and dubbed it Moyou. After obtaining the related sample, NSFOCUS conducted a detailed analysis of the trojan. Sample Analysis The following figure shows the detection result of NSFOCUS Threat Analysis Center (TAC). The sample obtains the C&C server address...
Category: Emergency Response
Remote Access Trojan KONNI Targeting North Korea Technical Analysis and Solution
This July a remote access trojan (RAT) KONNI was discovered to be involved in a cyberattack targeting North Korea, which was presumably linked to South Korea. This RAT spreads mainly through phishing emails. Specifically, the attacker first tries to have a powershell script executed via an .scr file, and then...
Dahua Cameras Unauthorized Access Vulnerability Analysis & Solution
Overview Dahua Technology, a well-known security camera and digital video recorder (DVR) vendor in China, released firmware updates to address serious security vulnerabilities for several of their products. By exploiting this vulnerability an attacker can access the user database of a Dahua camera without needing administrative privileges and extract the...
Anatomy of An Attack – DNS Amplification
Author: Vann Abernethy, Field CTO Overview DNS amplification attacks ramp up the power of a botnet when targeting a victim. The basic technique of a DNS amplification attack is to spoof the IP of the intended target and send a request for a large DNS zone file to any number of...
