About “Win32/Kryptik.ARIB” infection

The Win32/Kryptik.ARIB 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.ARIB 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
• A process attempted to delay the analysis task.
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• HTTPS urls from behavior.
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Unconventionial binary language: Russian
• Unconventionial language used in binary resources: Russian
• Authenticode signature is invalid
• Deletes its original binary from disk
• Behavioural detection: Injection (inter-process)
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• Attempts to modify proxy settings
• CAPE detected injection into a browser process, likely for Man-In-Browser (MITB) infostealing
• Creates a copy of itself

How to determine Win32/Kryptik.ARIB?

File Info:
name: CFB8A3ED18FB14C7E545.mlw
path: /opt/CAPEv2/storage/binaries/f83a4b8d75f55025ac2147642e508c5cfd87b30263a8b95611dd5389d2cefcb5
crc32: 3E3D5180
md5: cfb8a3ed18fb14c7e54546cc09258fac
sha1: a3b6e1a4a72067a4486e29e7e49aaa1326e97445
sha256: f83a4b8d75f55025ac2147642e508c5cfd87b30263a8b95611dd5389d2cefcb5
sha512: 658438fdc221c5f90ab62943795e2a40abc30fc2347c5d7190c2f5f0c251d2bffb163d87bf26935c434bb749a91850e486bcab99f228558b6e48f43b3ee7cbdb
ssdeep: 1536:wAczWKm7V1lQP2rzzsTRYTRRTRTTRScweb:yaflQP2rzA9Y9R9T9Eeb
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1D7B3C506EDAB5431FC62E6FF090279D20C31FE1216F1C8AA61D6270AE9FC57765A027D
sha3_384: 6bfa4e3572032967382c168b579ff6ecfcfbba4ef4e4390ee3895be8aaba53c706dbe012cd454e536ba5feab6ddca8eb
ep_bytes: 558bec51c745fc04000000c745fc0400
timestamp: 2012-12-27 23:00:39

Version Info:
CompanyName: Корпорация Майкрософт
FileDescription: Мастер создания общих ресурсов
FileVersion: 5.1.2600.5512 (xpsp.080413-2108)
InternalName: SHRWIZ
LegalCopyright: © Корпорация Майкрософт. Все права защищены.
OriginalFilename: shrpubw.exe
ProductName: Операционная система Microsoft® Windows®
ProductVersion: 5.1.2600.5512
Translation: 0x0419 0x04b0

Win32/Kryptik.ARIB also known as:

How to remove Win32/Kryptik.ARIB?

• 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.