Trojan:Win32/Asyto.A removal tips

The Trojan:Win32/Asyto.A 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.

What Trojan:Win32/Asyto.A virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Authenticode signature is invalid
• Attempts to remove evidence of file being downloaded from the Internet
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• Collects and encrypts information about the computer likely to send to C2 server
• Installs itself for autorun at Windows startup
• Attempts to identify installed AV products by installation directory
• Creates a copy of itself

How to determine Trojan:Win32/Asyto.A?

File Info:
name: 4E0FC57A67FA016EFFD6.mlwpath: /opt/CAPEv2/storage/binaries/624d56f580e1975c939af5187adb83f6da7418f80833e900f86cac245019d633crc32: C71F9657md5: 4e0fc57a67fa016effd699771c45882dsha1: 6dc4c35b1c327be5dc9148d9732e71be72c97b37sha256: 624d56f580e1975c939af5187adb83f6da7418f80833e900f86cac245019d633sha512: 452000e6e82d69827974667797d4685b2d34d5e0eb8c063a30d51abfc4019b8d2fde33f38ca73b4f2b1eda9484900a005f4e8d194e7ed16e0c7b19a89b3382e3ssdeep: 12288:2/FsH6vQhGfij1xbjd6RoJOgFs7rh5hiQhZw6JTheHbrc5Ee7kzKwo1u7GEKpU:2Dfyxbj2NxLhbjg/c5bkWwo1uKEOUtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D825AE8A76C2C091FFCA23F9B2472CD758C4CED6A9E3F03FC1DA96906C5541A729D186sha3_384: e19523c9b36e1b2e822b649c1fce8637b1f48f0eff6004028db2fa48f4733a287003c3714d074d8c0bbf56048a983d40ep_bytes: ff250020400000000000000000000000timestamp: 2014-06-12 18:48:48
Version Info:
FileDescription:  FileVersion: 1.0.0.0InternalName: Asus.exeLegalCopyright:  OriginalFilename: Asus.exeProductVersion: 1.0.0.0Assembly Version: 1.0.0.0Translation: 0x0000 0x04b0

Trojan:Win32/Asyto.A also known as:

How to remove Trojan:Win32/Asyto.A?

• 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.