Class: Trojan-Downloader
Programs classified as Trojan-Downloader download and install new versions of malicious programs, including Trojans and AdWare, on victim computers. Once downloaded from the Internet, the programs are launched or included on a list of programs which will run automatically when the operating system boots up. Information about the names and locations of the programs which are downloaded are in the Trojan code, or are downloaded by the Trojan from an Internet resource (usually a web page). This type of malicious program is frequently used in the initial infection of visitors to websites which contain exploits.Read more
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-Downloader.Win32.Dyfuca.bm
No family descriptionExamples
C8CD9CC12E6F583B877ED34D389569F8919664B95C8C24CAB797CEEA80204F8C
97F5EA67BDB106A4CE7FC22AD98C0D27
A1DF66F1D618826AC5CC93DD1889E395
14219778CDF29B0FDD11AAF496DAFACB
Tactics and Techniques: Mitre*
TA0005
Defense Evasion
Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft.
T1218.010
Regsvr32
Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft.
* © 2025 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.