PUP.Optional.Kaobeitu (file analysis)

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

• Presents an Authenticode digital signature
• Creates RWX memory
• A process created a hidden window
• Drops a binary and executes it
• Unconventionial binary language: Chinese (Simplified)
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary likely contains encrypted or compressed data.
• Tries to suspend Cuckoo threads to prevent logging of malicious activity
• A process attempted to delay the analysis task by a long amount of time.
• Tries to unhook or modify Windows functions monitored by Cuckoo
• Attempts to repeatedly call a single API many times in order to delay analysis time
• Installs itself for autorun at Windows startup
• Exhibits possible ransomware file modification behavior
• Checks the version of Bios, possibly for anti-virtualization
• Checks the CPU name from registry, possibly for anti-virtualization
• Collects information to fingerprint the system
• Anomalous binary characteristics

Related domains:

How to determine PUP.Optional.Kaobeitu?

File Info:
crc32: 819929DD
md5: 628e78bc83af83519bdc38d97c7a72c3
name: setup_klzip_klzipdate01nodkpk_v1.0_silent.exe
sha1: 6ade8ba6ba921fc7fc239cc7ed381dbc6801c915
sha256: 3abe0e9a9f946b90f4f975855a19d2d0bc1eeea7a2ba849a27aadaca0fea361d
sha512: efa4166d77c320004250d7d91607b748e6603b117528155bf36d9048d847a852605c2cbc47e1e1fe39d85f6181dd30d3114aecc33c0809c3c4e479d566aecee9
ssdeep: 196608:hHGD+WpX2PQkObi/Ms4rdeqzkiKYWsQSdo/jfZtjHfmWcDnTyFKh1Vl+vNzv:hmSiX2PVCeMPoqvPATjmROuJ+vNz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Copyright (C) 2019 x4e0ax6d77x840cx683cx7535x5b50x5546x52a1x6709x9650x516cx53f8
InternalName: Setup.exe
CompanyName: x4e0ax6d77x840cx683cx7535x5b50x5546x52a1x6709x9650x516cx53f8
ProductName: x9177x96f7x538bx7f29
ProductVersion: 1.0.0.1
FileDescription: x9177x96f7x538bx7f29x5b89x88c5x7a0bx5e8f
OriginalFilename: Setup.exe
Translation: 0x0804 0x04b0

PUP.Optional.Kaobeitu also known as:

How to remove PUP.Optional.Kaobeitu?

• 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.