Kaspersky Threats — Trojan-Dropper.Win32.Agent.tfjsxj

Class: Trojan-Dropper

Trojan-Dropper programs are designed to secretly install malicious programs built into their code to victim computers. This type of malicious program usually save a range of files to the victim’s drive (usually to the Windows directory, the Windows system directory, temporary directory etc.), and launches them without any notification (or with fake notification of an archive error, an outdated operating system version, etc.). Such programs are used by hackers to: secretly install Trojan programs and/or viruses protect known malicious programs from being detected by antivirus solutions; not all antivirus programs are capable of scanning all the components inside this type of Trojans.

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Platform: Win32

Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.

Family: Trojan.Win64.Agent

No family description

Examples

B120888C7F6250354F9C889ADE092DFD
70BD4A95C2801642B9B12DD1B5C8CB8D
E24833CE5E99E8367671F0F3E7684ACF
C00ACEB5665A7B38C65C4312196A6798
0B56B11BE07CC0E08F36D15F29A3D78C

Tactics and Techniques: Mitre*

TA0005

Defense Evasion

Adversaries may abuse the right-to-left override (RTLO or RLO) character (U+202E) to disguise a string and/or file name to make it appear benign. RTLO is a non-printing Unicode character that causes the text that follows it to be displayed in reverse. For example, a Windows screensaver executable named March 25 u202Excod.scr will display as March 25 rcs.docx. A JavaScript file named photo_high_reu202Egnp.js will be displayed as photo_high_resj.png.

T1036.002

Right-to-Left Override