Win32:Crypt-OVT [Trj] removal guide

The Win32:Crypt-OVT [Trj] 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:Crypt-OVT [Trj] virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Presents an Authenticode digital signature
• Creates RWX memory
• Anomalous file deletion behavior detected (10+)
• Dynamic (imported) function loading detected
• At least one IP Address, Domain, or File Name was found in a crypto call
• Starts servers listening on 0.0.0.0:15887, :0
• Enumerates running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Code injection with CreateRemoteThread in a remote process
• Behavioural detection: Injection (inter-process)
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• Tries to unhook or modify Windows functions monitored by Cuckoo
• Steals private information from local Internet browsers
• Collects and encrypts information about the computer likely to send to C2 server
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Attempts to modify browser security settings
• Collects information to fingerprint the system
• Anomalous binary characteristics
• Clears web history

How to determine Win32:Crypt-OVT [Trj]?

File Info:
name: EEF84C2F00F184260318.mlw
path: /opt/CAPEv2/storage/binaries/efb6105ea34ddf69c4b0282faa2db9b5c99a2493d2561b639eb3fe6953b56d38
crc32: 3A27AE08
md5: eef84c2f00f184260318053360351390
sha1: c9c4fb484bff419107bfecf4d82ed0e40e180712
sha256: efb6105ea34ddf69c4b0282faa2db9b5c99a2493d2561b639eb3fe6953b56d38
sha512: 25020e2d3dae75501583ac278f2b03ddaa81323c3c70705f023e90b94af9216ae942694ecd1adce018232809630c9008be19975ca06845af777847fac0fc94a6
ssdeep: 6144:xbCdhMyzFF5IX0zE9NKFEWNFfK4CS0NwI/2+fFBFFrki/:xmdGW5IXxcXNkjN/Zf1FrD
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1FA84F136FC1B1409E622CE35F97273BC1A6871AF3B18C5C66740BCD619510AACBF9639
sha3_384: 1da5c0bb98fc8fb659f11d24f69a94675c0763b052d2861019ff7acf635c9a539e92645e534f14983e9308a3f7d8b400
ep_bytes: 558bec51c745fc36c80000e8d0fcffff
timestamp: 2012-08-30 19:20:17

Version Info:
CompanyName: Microsoft Corporation
FileDescription: Windows Winhlp32 Stub
FileVersion: 5.00.2134.1
InternalName: WINHSTB
LegalCopyright: Copyright (C) Microsoft Corp. 1991-1996
OriginalFilename: WINHLP32.EXE
ProductName: Microsoft(R) Windows (R) 2000 Operating System
ProductVersion: 5.00.2134.1
Translation: 0x0409 0x04b0

Win32:Crypt-OVT [Trj] also known as:

How to remove Win32:Crypt-OVT [Trj]?

• 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.