Win32/Kryptik.ARSU malicious file

The Win32/Kryptik.ARSU 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 Win32/Kryptik.ARSU virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Attempts to connect to a dead IP:Port (1 unique times)
• Presents an Authenticode digital signature
• Creates RWX memory
• Mimics the system’s user agent string for its own requests
• Possible date expiration check, exits too soon after checking local time
• A process attempted to delay the analysis task.
• A named pipe was used for inter-process communication
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• A process created a hidden window
• Performs some HTTP requests
• The binary likely contains encrypted or compressed data.
• Uses Windows utilities for basic functionality
• Executed a process and injected code into it, probably while unpacking
• A system process is generating network traffic likely as a result of process injection
• Installs itself for autorun at Windows startup
• Checks the version of Bios, possibly for anti-virtualization
• Checks the CPU name from registry, possibly for anti-virtualization
• Attempts to modify proxy settings
• Collects information to fingerprint the system
• Anomalous binary characteristics

Related domains:

How to determine Win32/Kryptik.ARSU?

File Info:
crc32: 3A73ED8F
md5: f35aa23522568e2dd336221fe46a3f5f
name: upload_file
sha1: 4427ee24d02099b7174d3984a7da3d3bdea1a730
sha256: db83a5765d4a918e81e6c905ceda360fecfd03836e251e9580d8f40f8c607299
sha512: f6ef9dc41dfa6782169e9fdf0155c490908fe93fb54bee6ec5a15f3c4707918b3ad9b27e4b24bb143d1b2a4d2a3ebef14d18dbfa12dd4f857fe19158607e0c60
ssdeep: 12288:VHGjdirDpv+xNTKpdfhLwVSZR0mjiqAqTVc2xrWaO:BHpQOpFhL57uqAUVcarWaO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Copyright xa9 2004-2016 Tim Kosse,   1997-2016 Simon Tatham.
InternalName: FZSFTP
FileVersion: Unidentified build
CompanyName: FileZilla Project
PrivateBuild: Unidentified build
ProductName: FileZilla
ProductVersion: Unidentified build
FileDescription: SFTP module for FileZilla based on PuTTY's psftp component
OriginalFilename: FZSFTP
Translation: 0x0809 0x04b0

Win32/Kryptik.ARSU also known as:

How to remove Win32/Kryptik.ARSU?

• 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.