About “PUP.Optional.Chistilka” infection

The PUP.Optional.Chistilka 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 PUP.Optional.Chistilka virus can do?

• Presents an Authenticode digital signature
• Reads data out of its own binary image
• Unconventionial binary language: Russian
• Unconventionial language used in binary resources: Russian
• The binary likely contains encrypted or compressed data.
• Detects VirtualBox through the presence of a window
• Detects VirtualBox using WNetGetProviderName trick
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
• Installs itself for autorun at Windows startup
• Checks the version of Bios, possibly for anti-virtualization
• Checks the presence of disk drives in the registry, possibly for anti-virtualization
• Detects VirtualBox through the presence of a device
• Detects VirtualBox through the presence of a file
• Detects VirtualBox through the presence of a registry key
• Creates a copy of itself
• Created a service that was not started
• Anomalous binary characteristics

Related domains:

How to determine PUP.Optional.Chistilka?

File Info:
crc32: 8589A08Amd5: 4fc5e271dfd56c5876b4cde771f2c981name: cleaner.exesha1: 35b81d0a211981c886651a9e20280c560df6a503sha256: ea95691f38e5618d6041d8f6d77939327691320e76a4cfad3e787cb079d33904sha512: e883273a1062fc08c9502db80e4c406d1223c909df6c59796b8ef8cc2e88e1ce0d5449e7caac6ca3a2f8be4e8b177db6e6c7e6a76f8016fe473312b35320cc0cssdeep: 98304:YhXQ5SKwZepAX9ItHM5p7HoCCT4PU7MRT4PU7MW/YhGuv:K9PItC/IGuvtype: PE32 executable (GUI) Intel 80386, for MS Windows
Version Info:
LegalCopyright: InternalName: x427x438x441x442x438x43bx43ax430.exeFileVersion: 2.21.250CompanyName: LegalTrademarks1: LegalTrademarks2: ProductName: x427x438x441x442x438x43bx43ax430ProductVersion: 2.21.250FileDescription: x41fx440x43ex433x440x430x43cx43cx43dx43ex435 x43ex431x435x441x43fx435x447x435x43dx438x435 x434x43bx44f x441x43ex434x435x440x436x430x43dx438x44f x43ax43ex43cx43fx44cx44ex442x435x440x430 x432 x447x438x441x442x43ex442x435.OriginalFilename: x427x438x441x442x438x43bx43ax430.exeTranslation: 0x0419 0x04b0

PUP.Optional.Chistilka also known as:

How to remove PUP.Optional.Chistilka?

• 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.