Should I remove “Ransom.PolyRansom.B2”?

The Ransom.PolyRansom.B2 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 Ransom.PolyRansom.B2 virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Attempts to connect to a dead IP:Port (2 unique times)
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Anomalous file deletion behavior detected (10+)
• Dynamic (imported) function loading detected
• Enumerates running processes
• Expresses interest in specific running processes
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• Reads data out of its own binary image
• Manipulates data from or to the Recycle Bin
• A process created a hidden window
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• A scripting utility was executed
• Uses Windows utilities for basic functionality
• Uses Windows utilities for basic functionality
• A process attempted to delay the analysis task by a long amount of time.
• Created a process from a suspicious location
• Installs itself for autorun at Windows startup
• Installs itself for autorun at Windows startup
• Overwrites multiple files with zero bytes (hex 00) indicative of a wiper
• Deletes executed files from disk
• Attempts to disable UAC
• Anomalous binary characteristics
• Attempts to modify Explorer settings to prevent file extensions from being displayed
• Attempts to modify Explorer settings to prevent hidden files from being displayed
• Uses suspicious command line tools or Windows utilities

How to determine Ransom.PolyRansom.B2?

File Info:
name: A747173CDC62F6282F16.mlw
path: /opt/CAPEv2/storage/binaries/cfe4ed54323c9baf798d14351440ffd0368c707ba2eff54a2a7d8b1ae142cbb7
crc32: 7AE24009
md5: a747173cdc62f6282f1608229feb2fda
sha1: 08ca4ba1d373ffbcf9ccea9979ba5c7f39b9fce5
sha256: cfe4ed54323c9baf798d14351440ffd0368c707ba2eff54a2a7d8b1ae142cbb7
sha512: 35b5d583cdaebb886017113d46263a0bb12eb40ac511301995eef897e646f429a29a5b75aa3e5c44227f8917ffc8e293b3a4f9b4ce059a755f4652ffc4f46f56
ssdeep: 24576:UIFjcRJNcncCCeT3Kp+YMN/Hr1DpsBFANNPw:UI+RJNccZeT3Kp+tHr1SBP
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1EE85B64E14662E9329AB930DB2C547810F33B123795EAF1B75BA90495FC5E0A7F02F36
sha3_384: 055cb1f49d9a9937dc93942a4378b6911896baac9a8e692082af1832468bfd9a2ed3d0f4140a348c8bd5f9ca2a7c6735
ep_bytes: 23d903c323f823c80bc1bf872a6c6e33
timestamp: 2019-01-01 10:35:08

Version Info:
0: [No Data]

Ransom.PolyRansom.B2 also known as:

How to remove Ransom.PolyRansom.B2?

• 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.