RiskTool.Win32.StartPage.jyr (file analysis)

The RiskTool.Win32.StartPage.jyr 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.

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.

DOWNLOAD NOW

6-day free trial available.

What RiskTool.Win32.StartPage.jyr virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Anomalous file deletion behavior detected (10+)
• Dynamic (imported) function loading detected
• Enumerates running processes
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• Reads data out of its own binary image
• Attempts to modify Internet Explorer’s start page
• Unconventionial binary language: Chinese (Simplified)
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• A ping command was executed with the -n argument possibly to delay analysis
• Uses Windows utilities for basic functionality
• Sniffs keystrokes
• Deletes its original binary from disk
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
• Installs itself for autorun at Windows startup
• Attempts to disable UAC
• Attempts to modify UAC prompt behavior
• Uses suspicious command line tools or Windows utilities

How to determine RiskTool.Win32.StartPage.jyr?

File Info:
name: 405E79BA9AD8913E3B45.mlw
path: /opt/CAPEv2/storage/binaries/6cf1f6977de643d96e92d85df2f6eb1a258528fefbf4515be8e9d0e15c42d367
crc32: 93D42884
md5: 405e79ba9ad8913e3b451399fc952a52
sha1: 320782547ab4ccf4ea6789e6b78b3c3db57122a7
sha256: 6cf1f6977de643d96e92d85df2f6eb1a258528fefbf4515be8e9d0e15c42d367
sha512: 68ca80d79b9933d54eb396bdbfac66d294a4bd8fd460620285ab2a4092446c47821f0fd7c1ded2014eb94b035ad2c41a90f3f32a580d9ce95009d7a068d8f2d4
ssdeep: 24576:4q5TfcdHj4fmbsz+76Yu5ix/iKWG+IldPW5:4UTsamgS68/m0W
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T15F15239213FC4A9AF6F13736F87127A00A35BE56A8BDC71C17D82A4C19F23914D94B71
sha3_384: bd5a174b2674329e2212f9b49e82e230e815eeb940f2cd370ade5768fad57fe0b5018dd1a0d9c32e3e33f57a836a1171
ep_bytes: 60be001051008dbe0000efff57eb0b90
timestamp: 2015-04-01 08:54:10

Version Info:
FileVersion: 1.0.0.0
LegalCopyright: Copyright © 2013-2015
ProductVersion: 1.0.0.0
授权方式: arFi
Translation: 0x0804 0x04b0

RiskTool.Win32.StartPage.jyr also known as:

How to remove RiskTool.Win32.StartPage.jyr?

• 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.