Win32:Kryptik-AEV [Trj] (file analysis)

The Win32:Kryptik-AEV [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:Kryptik-AEV [Trj] 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
• Enumerates running processes
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Unconventionial language used in binary resources: Russian
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• Checks for the presence of known windows from debuggers and forensic tools
• Attempts to identify installed analysis tools by a known file location
• Checks the presence of disk drives in the registry, possibly for anti-virtualization
• Creates a copy of itself

How to determine Win32:Kryptik-AEV [Trj]?

File Info:
name: 17FAB13DDBF227E445BB.mlw
path: /opt/CAPEv2/storage/binaries/aecc824448e45c104af85aaca400bd861fe4f2a9d86f8559c408bc3be07dda13
crc32: 4DB090F1
md5: 17fab13ddbf227e445bb67466885a5a3
sha1: 34abdb4aaeb653cf9ebb9bd39540fce2ce6b2e17
sha256: aecc824448e45c104af85aaca400bd861fe4f2a9d86f8559c408bc3be07dda13
sha512: 718f4568362ac848cf8d693ac98a90521a30a6172d30d863e48c9a462823d067be228aa9145b1b7b9e79830df01e89d490465ace3ae9ed9d99cbf811e1719855
ssdeep: 6144:0sworcqbcxfRNFCEgCtgstX3BFxn2IqxXB:91oqYRAlCtp2D
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A81423088DEC94F7D8B74F39C16D2B155943D40DBA11E413AEE5A511EF32B06AEBC6B0
sha3_384: 142a1854a79bd035b9d1df263ee7865b23296c66c74372569da9e0a093a3e09c034bed93e407958ec71a58d5adb55e35
ep_bytes: 60be00d044008dbe0040fbff57eb0b90
timestamp: 2004-03-22 23:16:45

Version Info:
CompanyName: Aper1 Software
FileDescription: Aper1 Internet Browser
FileVersion: 1190
InternalName: Aper1
LegalCopyright: Copyright © Oper1 Software 1995-2011
OriginalFilename: Aper1.exe
ProductName: Aper1 Internet Browser
ProductVersion: 11.01
Translation: 0x0409 0x04b0

Win32:Kryptik-AEV [Trj] also known as:

How to remove Win32:Kryptik-AEV [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.