Trojan.Win32.Ekstak.amkhf (file analysis)

The Trojan.Win32.Ekstak.amkhf 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.Ekstak.amkhf virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Sample contains Overlay data
• 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
• Checks adapter addresses which can be used to detect virtual network interfaces
• Dynamic (imported) function loading detected
• Reads data out of its own binary image
• Drops a binary and executes it
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Behavioural detection: Transacted Hollowing
• Collects and encrypts information about the computer likely to send to C2 server
• Likely virus infection of existing system binary
• Detects Bochs through the presence of a registry key
• Deletes executed files from disk

How to determine Trojan.Win32.Ekstak.amkhf?

File Info:
name: B0BE7D5BA312771D1EE4.mlwpath: /opt/CAPEv2/storage/binaries/12f14891d14f73b13056d46fbd048b17793d51c2f39c67fda8a6e5863c9a1f55crc32: F3261497md5: b0be7d5ba312771d1ee41de38b04503dsha1: de99ffe394c6d2fcd460ca7921824a37587af3e9sha256: 12f14891d14f73b13056d46fbd048b17793d51c2f39c67fda8a6e5863c9a1f55sha512: 17ee3fe7b71382638992bbd7dfc7729f96030229467c716af313660d89cf79439661b5a50f100f2088cece24b0d961730e1046b458b60b82223bb82c61950b63ssdeep: 196608:ykoe/bEGNbftCXuZSU7vSz17ZaJSpnGV7vQ3j+blOCA:yvuEkCV1NXpGBQ3CbvAtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1CF6633B17680B7E2C52206BAB92BE50C62377E150911D25E33C4BF3A2777389732675Bsha3_384: e9f136af37c8790a9f8abf583a5227dd1196d76571f35b7bfb8ec4569066bbd72d8bb3d811cdda4c377158b5b7e04046ep_bytes: 558bec83c4cc53565733c08945f08945timestamp: 1992-06-19 22:22:17
Version Info:
Comments: This installation was built with Inno Setup.CompanyName: Novativt Solutions                                          FileDescription: Disk Cleaner                                                FileVersion: 6.0.1.6             LegalCopyright:                                                                                                     Translation: 0x0409 0x04e4

Trojan.Win32.Ekstak.amkhf also known as:

How to remove Trojan.Win32.Ekstak.amkhf?

• 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.