PUA:Win32/MyWebSearch (file analysis)

The PUA:Win32/MyWebSearch 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 PUA:Win32/MyWebSearch virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Creates RWX memory
• Anomalous file deletion behavior detected (10+)
• Guard pages use detected – possible anti-debugging.
• A process attempted to delay the analysis task.
• Attempts to connect to a dead IP:Port (5 unique times)
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• A named pipe was used for inter-process communication
• Starts servers listening on 127.0.0.1:0
• Enumerates running processes
• Expresses interest in specific running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Behavioural detection: Injection (inter-process)
• A possible heap spray exploit has been detected
• Attempts to modify proxy settings
• Harvests cookies for information gathering
• Anomalous binary characteristics

How to determine PUA:Win32/MyWebSearch?

File Info:
name: 666BAD63A29770934E72.mlw
path: /opt/CAPEv2/storage/binaries/3f5e5a264e91f217f47c4ccaba62fa0cce8030095c67912f20761492c962cb86
crc32: 2FA3674C
md5: 666bad63a29770934e72df64cbabb239
sha1: f21d075393967c6bfee7fe35de470f550a522e64
sha256: 3f5e5a264e91f217f47c4ccaba62fa0cce8030095c67912f20761492c962cb86
sha512: 41476878ec158349a80e829bb8ee135faf570484daf5ae6812c75106a1d3d9fb1c3ea0169b4aa4ad07995793d38211a84cbe11b981861768f78e359fb68cbe1e
ssdeep: 6144:fbUTp1oy0LpgM+DTLSdfq5EHC+AY1xuSptl6kbCvRKZU1sr9jzb7:fIYJL2fB0C+Vx3lsvRKZ95vP
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T104741243D6B49062ED23C9707DB1866B5EBAB92022A4591F570DC6689A32FC23F1C37D
sha3_384: db0fd32698286571538e660dcafdb48318c9c37e317f2197cd001ce1cf629237132266047426c01a39f5aaf16db6023d
ep_bytes: 81ecd4020000535556576a2033ed5e89
timestamp: 2013-12-25 05:01:44

Version Info:
Comments: http://www.mindspark.com
CompanyName: Mindspark Interactive Network, Inc.
FileDescription: 100sofRecipes Setup
FileVersion: 2.5.1.1000
InternalName: 100sofRecipes
LegalCopyright: © 2016 Mindspark Interactive Network, Inc. An IAC Company. All rights reserved.
LegalTrademarks: ® & ™ Mindspark Interactive Network, Inc. An IAC Company. All rights reserved.
ProductName: 100sofRecipes
ProductVersion: 2.5.1.1000
Translation: 0x0409 0x0000

PUA:Win32/MyWebSearch also known as:

How to remove PUA:Win32/MyWebSearch?

• 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.