About “Trojan:Win32/Vidar!MSR” infection

The Trojan:Win32/Vidar!MSR 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:Win32/Vidar!MSR virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• Sample contains Overlay data
• Presents an Authenticode digital signature
• Uses Windows utilities for basic functionality
• Reads data out of its own binary image
• Drops a binary and executes it
• The binary likely contains encrypted or compressed data.
• Uses Windows utilities to enumerate running processes
• Authenticode signature is invalid
• A ping command was executed with the -n argument possibly to delay analysis
• Uses Windows utilities to create a scheduled task
• CAPE detected the shellcode patterns malware family
• Detects the presence of Windows Defender AV emulator via files
• Detects Bochs through the presence of a registry key
• Appears to use command line obfuscation
• Uses suspicious command line tools or Windows utilities
• Yara detections observed in process dumps, payloads or dropped files

How to determine Trojan:Win32/Vidar!MSR?

File Info:
name: C9012ECC1EF58E6B1A0D.mlw
path: /opt/CAPEv2/storage/binaries/add55475e308fdeb41e19cf7331f70fd17cdd57ee4aa0a4d8e96da7d7b3e6fee
crc32: 9FD0166B
md5: c9012ecc1ef58e6b1a0d675f3fed1120
sha1: 22cf4c5e308e60fe9933139c6724fd8d6759cbf2
sha256: add55475e308fdeb41e19cf7331f70fd17cdd57ee4aa0a4d8e96da7d7b3e6fee
sha512: 5ad89f493ae0d5d89177d26a1e59dd800cf52ccf2e6136c63fcfd640de899681a42c7f62a4ba59a136816f4753905d816a025654fcd19bbd5da2a4423f60a6fb
ssdeep: 12288:oNqDpUMyxl1rxQd8SXL7pIJ9y3Y02w8/EHR93DJyhKjaUy0S0nS:oNqFUlx7eb9IJ9/vwhHR9353y02
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T137E4239423646863EBC7BB312DBE93792AB5B13214D0808F476473A8BE4D3D25E1E7C5
sha3_384: 3fcf8fe6c419f1ccaed37286bab161854491849cd34adb5ac60bc54802be2282a61a612cc495123cbdfba9d4008b0eb2
ep_bytes: 558bec81ecf40300005356576a205f33
timestamp: 2021-09-25 21:55:49

Version Info:
0: [No Data]

Trojan:Win32/Vidar!MSR also known as:

How to remove Trojan:Win32/Vidar!MSR?

• 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.