What is “Trojan.Downloader.JSMM”?

The Trojan.Downloader.JSMM is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Trojan.Downloader.JSMM virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Compression (or decompression)
• Attempts to connect to a dead IP:Port (2 unique times)
• Presents an Authenticode digital signature
• Creates RWX memory
• Reads data out of its own binary image
• A process created a hidden window
• Drops a binary and executes it
• Performs some HTTP requests
• Looks up the external IP address
• Uses Windows utilities for basic functionality
• Executed a process and injected code into it, probably while unpacking
• Attempts to remove evidence of file being downloaded from the Internet
• Attempts to delete volume shadow copies
• Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware
• Modifies boot configuration settings
• Installs itself for autorun at Windows startup
• Writes a potential ransom message to disk
• Attempts to identify installed AV products by registry key
• Attempts to modify proxy settings
• Creates a copy of itself
• Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.
• Uses suspicious command line tools or Windows utilities

Related domains:

How to determine Trojan.Downloader.JSMM?

File Info:
crc32: 7DE58CBF
md5: d8d0697a2f8b79a9cc8f2a25a979720f
name: D8D0697A2F8B79A9CC8F2A25A979720F.mlw
sha1: 5406152150f05a0ebf0d396cbea1d92cb314eb7e
sha256: 239999ba2bbb65a2455250369fc2dd1a28af528c316b9e641e53382eef742f13
sha512: 4f036a14aececd241c4878943b0d3ebf41928097915f0a22469b5610f2c71b722fc5b78bf883faf73185c6bb763322f2a2c10e140912b0a2acbe13514481c2c1
ssdeep: 6144:eS8bw9daQKFKO8cFzSa1Fbjszvs7oOX90uu53kXCIOnT4:J8usQKhF11FPUll53k4
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Eclipsed (C) 2016
InternalName: Grinds
FileDescription: Fringy
OriginalFilename: Meany.exe
CompanyName: AVM Berlin

Trojan.Downloader.JSMM also known as:

How to remove Trojan.Downloader.JSMM?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.