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.

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: 7DE58CBFmd5: d8d0697a2f8b79a9cc8f2a25a979720fname: D8D0697A2F8B79A9CC8F2A25A979720F.mlwsha1: 5406152150f05a0ebf0d396cbea1d92cb314eb7esha256: 239999ba2bbb65a2455250369fc2dd1a28af528c316b9e641e53382eef742f13sha512: 4f036a14aececd241c4878943b0d3ebf41928097915f0a22469b5610f2c71b722fc5b78bf883faf73185c6bb763322f2a2c10e140912b0a2acbe13514481c2c1ssdeep: 6144:eS8bw9daQKFKO8cFzSa1Fbjszvs7oOX90uu53kXCIOnT4:J8usQKhF11FPUll53k4type: PE32 executable (console) Intel 80386, for MS Windows
Version Info:
LegalCopyright: Eclipsed (C) 2016InternalName: GrindsFileDescription: FringyOriginalFilename: Meany.exeCompanyName: 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.