Trojan.Win32.Ekstak.amhxv (file analysis)

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

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• 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
• 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
• Creates a hidden or system file
• Likely virus infection of existing system binary

How to determine Trojan.Win32.Ekstak.amhxv?

File Info:
name: 7B9C40654A4A21A5FE90.mlwpath: /opt/CAPEv2/storage/binaries/7bdada48b4d76498ef596f95da7cfbc5cf5a747a35520d70a58111ea2fbd186ccrc32: BE678A23md5: 7b9c40654a4a21a5fe90b2a0ab332f72sha1: 467ef357fab9d831edc35d9a0e51963bd8078f41sha256: 7bdada48b4d76498ef596f95da7cfbc5cf5a747a35520d70a58111ea2fbd186csha512: 4566344ae896e73e7f9468de4abec937a2f1920042f818780fff8cc2087833788188495d45ecf23f7f1e77d6c39802ecac5edf1c1b38818989f09cd2792d3c47ssdeep: 196608:WoZGoxbzDVCqKz3JAG1EOOXofWjtnYNId+ZqwaELEu:zGmHDsZD11MouHm/vjtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D076330BE7990775C5D629F9E9D18FD55F026C07BE39012AB3847B1E4D3B1932AA8383sha3_384: 9c696a1d3ea129bd6131d543a99a31cc0cd8ae4e061caf7a39758883d237d4eecafce6ea3060197b2cfe57ffffe2d96fep_bytes: 558bec83c4cc53565733c08945f08945timestamp: 1992-06-19 22:22:17
Version Info:
Comments: This installation was built with Inno Setup.CompanyName: Bisvik, LLC                                                 FileDescription: Bisvik Disk Cleaner Free                                    FileVersion: 1.2.0.15            LegalCopyright:                                                                                                     Translation: 0x0409 0x04e4

Trojan.Win32.Ekstak.amhxv also known as:

How to remove Trojan.Win32.Ekstak.amhxv?

• 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.