What is pfBL.DLL?
pfBL.DLL is part of pfBL and developed by Piriform Software Ltd according to the pfBL.DLL version information.
pfBL.DLL's description is "pfBL"
pfBL.DLL is digitally signed by Piriform Software Ltd.
pfBL.DLL is usually located in the 'c:\users\%USERNAME%\appdata\local\temp\nsm2b18.tmp\p\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about pfBL.DLL.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on pfBL.DLL:
| Property | Value |
|---|---|
| Product name | pfBL |
| Company name | Piriform Software Ltd |
| File description | pfBL |
| Internal name | pfBL.dll |
| Original filename | pfBL.dll |
| Legal copyright | Copyright © 2005-2019 Piriform Software Ltd |
| Product version | 5.52.0.6949 |
| File version | 5.52.0.6949 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | pfBL |
| Company name | Piriform Software Ltd |
| File description | pfBL |
| Internal name | pfBL.dll |
| Original filename | pfBL.dll |
| Legal copyright | Copyright © 2005-2019 Piriform Soft.. |
| Product version | 5.52.0.6949 |
| File version | 5.52.0.6949 |
Digital signatures [?]
pfBL.DLL has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | Piriform Software Ltd |
| Certificate issuer name | DigiCert Assured ID Code Signing CA-1 |
| Certificate serial number | 0523409b9fb5c3b8c0c463a318723ff9 |
VirusTotal report
None of the 71 anti-virus programs at VirusTotal detected the pfBL.DLL file.
Sandbox Report
The following information was gathered by executing the file inside Cuckoo Sandbox.
Summary
Successfully executed process in sandbox.
Summary
{
"file_recreated": [
"\\??\\Scsi0:",
"\\??\\PhysicalDrive0",
"\\??\\Volume{3f5cc1b6-70f9-11e8-b07b-806e6f6e6963}"
],
"dll_loaded": [
"kernel32",
"api-ms-win-core-fibers-l1-1-1",
"api-ms-win-core-localization-l1-2-1",
"api-ms-win-core-sysinfo-l1-2-1",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll",
"CRYPTSP.dll",
"api-ms-win-core-synch-l1-2-0"
],
"file_opened": [
"\\??\\PhysicalDrive0"
],
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\msasn1",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll.manifest"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentMajorVersionNumber",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentBuildNumber",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ReleaseId",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\UBR",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentVersion",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CSDVersion",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US"
]
}Generic
[
{
"process_path": "C:\\Windows\\System32\\lsass.exe",
"process_name": "lsass.exe",
"pid": 476,
"summary": {},
"first_seen": 1564469585.3594,
"ppid": 376
},
{
"process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
"process_name": "rundll32.exe",
"pid": 2660,
"summary": {
"file_recreated": [
"\\??\\Scsi0:",
"\\??\\PhysicalDrive0",
"\\??\\Volume{3f5cc1b6-70f9-11e8-b07b-806e6f6e6963}"
],
"dll_loaded": [
"kernel32",
"api-ms-win-core-fibers-l1-1-1",
"api-ms-win-core-localization-l1-2-1",
"api-ms-win-core-sysinfo-l1-2-1",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll",
"CRYPTSP.dll",
"api-ms-win-core-synch-l1-2-0"
],
"file_opened": [
"\\??\\PhysicalDrive0"
],
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\msasn1",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c.bin.dll.manifest"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentMajorVersionNumber",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentBuildNumber",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ReleaseId",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\UBR",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CurrentVersion",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\CSDVersion",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US"
]
},
"first_seen": 1564469585.6094,
"ppid": 3040
}
]Signatures
[
{
"markcount": 1,
"families": [],
"description": "This executable has a PDB path",
"severity": 1,
"marks": [
{
"category": "pdb_path",
"ioc": "D:\\BUILD\\work\\01\\8712b5bd1c95b705\\bin\\pfBL\\Release\\pfBL.pdb",
"type": "ioc",
"description": null
}
],
"references": [],
"name": "has_pdb"
},
{
"markcount": 1,
"families": [],
"description": "Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available",
"severity": 1,
"marks": [
{
"call": {
"category": "system",
"status": 1,
"stacktrace": [],
"api": "GlobalMemoryStatusEx",
"return_value": 1,
"arguments": {},
"time": 1564469585.7194,
"tid": 2308,
"flags": {}
},
"pid": 2660,
"type": "call",
"cid": 167
}
],
"references": [],
"name": "antivm_memory_available"
},
{
"markcount": 1,
"families": [],
"description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
"severity": 1,
"marks": [
{
"category": "section",
"ioc": ".gfids",
"type": "ioc",
"description": null
}
],
"references": [],
"name": "pe_features"
},
{
"markcount": 11,
"families": [],
"description": "Allocates read-write-execute memory (usually to unpack itself)",
"severity": 2,
"marks": [
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x74d15000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 10
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x75e01000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 12
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x75751000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 14
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x75f11000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 16
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x76101000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 18
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x77311000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 20
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x74f11000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 22
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x75081000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 24
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x75ce1000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 26
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x74ea1000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 28
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtProtectVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2660,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"length": 4096,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x74e51000"
},
"time": 1564469585.7034,
"tid": 2308,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 30
}
],
"references": [],
"name": "allocates_rwx"
},
{
"markcount": 1,
"families": [],
"description": "Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation",
"severity": 2,
"marks": [
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "GetDiskFreeSpaceExW",
"return_value": 1,
"arguments": {
"root_path": "",
"free_bytes_available": 23513006080,
"total_number_of_free_bytes": 0,
"total_number_of_bytes": 0
},
"time": 1564469585.7194,
"tid": 2308,
"flags": {}
},
"pid": 2660,
"type": "call",
"cid": 168
}
],
"references": [],
"name": "antivm_disk_size"
},
{
"markcount": 1,
"families": [],
"description": "Looks for the Windows Idle Time to determine the uptime",
"severity": 3,
"marks": [
{
"call": {
"category": "system",
"status": 1,
"stacktrace": [],
"api": "NtQuerySystemInformation",
"return_value": 0,
"arguments": {
"information_class": 8
},
"time": 1564469585.7194,
"tid": 2308,
"flags": {
"information_class": "SystemProcessorPerformanceInformation"
}
},
"pid": 2660,
"type": "call",
"cid": 170
}
],
"references": [],
"name": "antisandbox_idletime"
},
{
"markcount": 2,
"families": [],
"description": "Queries information on disks, possibly for anti-virtualization",
"severity": 3,
"marks": [
{
"call": {
"category": "file",
"status": 1,
"stacktrace": [],
"api": "NtCreateFile",
"return_value": 0,
"arguments": {
"create_disposition": 1,
"file_handle": "0x000000f0",
"filepath": "\\??\\PhysicalDrive0",
"desired_access": "0x00100080",
"file_attributes": 0,
"filepath_r": "\\??\\PhysicalDrive0",
"create_options": 96,
"status_info": 0,
"share_access": 3
},
"time": 1564469585.7194,
"tid": 2308,
"flags": {
"create_disposition": "FILE_OPEN",
"desired_access": "FILE_READ_ATTRIBUTES|SYNCHRONIZE",
"create_options": "FILE_NON_DIRECTORY_FILE|FILE_SYNCHRONOUS_IO_NONALERT",
"file_attributes": "",
"status_info": "FILE_SUPERSEDED",
"share_access": "FILE_SHARE_READ|FILE_SHARE_WRITE"
}
},
"pid": 2660,
"type": "call",
"cid": 147
},
{
"call": {
"category": "file",
"status": 1,
"stacktrace": [],
"api": "DeviceIoControl",
"return_value": 1,
"arguments": {
"input_buffer": "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000",
"device_handle": "0x000000f0",
"control_code": 2954240,
"output_buffer": "(\u0000\u0000\u0000\u00a7\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000L\u0000\u0000\u0000u\u0000\u0000\u0000~\u0000\u0000\u0000\u000b\u0000\u0000\u0000$\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0002 \u0000\u0000\u0000VBOX HARDDISK\u0000 1.0\u0000VBOX HARDDISK\u0000 \u00001.0\u0000 \u000042563830336138373334382d3132306438352066\u0000"
},
"time": 1564469585.7194,
"tid": 2308,
"flags": {
"control_code": ""
}
},
"pid": 2660,
"type": "call",
"cid": 148
}
],
"references": [],
"name": "antivm_generic_disk"
},
{
"markcount": 1,
"families": [],
"description": "Detects Virtual Machines through their custom firmware",
"severity": 3,
"marks": [
{
"call": {
"category": "system",
"status": 0,
"stacktrace": [],
"last_error": 1,
"nt_status": -1073741808,
"api": "NtQuerySystemInformation",
"return_value": 3221225507,
"arguments": {
"information_class": 76
},
"time": 1564469585.7194,
"tid": 2308,
"flags": {
"information_class": "SystemFirmwareTableInformation"
}
},
"pid": 2660,
"type": "call",
"cid": 164
}
],
"references": [],
"name": "antivm_firmware"
}
]Yara
The Yara rules did not detect anything in the file.
Network
{
"tls": [],
"udp": [
{
"src": "192.168.56.101",
"dst": "192.168.56.255",
"offset": 662,
"time": 6.1993298530579,
"dport": 137,
"sport": 137
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5190,
"time": 6.1588230133057,
"dport": 5355,
"sport": 51001
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5518,
"time": 4.1699650287628,
"dport": 5355,
"sport": 53595
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5846,
"time": 6.1724648475647,
"dport": 5355,
"sport": 53848
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6174,
"time": 4.7567949295044,
"dport": 5355,
"sport": 54255
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6502,
"time": 3.0453088283539,
"dport": 5355,
"sport": 55314
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 6830,
"time": 4.7163200378418,
"dport": 1900,
"sport": 1900
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 15512,
"time": 4.1982610225677,
"dport": 3702,
"sport": 49152
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 19704,
"time": 6.2448298931122,
"dport": 1900,
"sport": 53598
}
],
"dns_servers": [],
"http": [],
"icmp": [],
"smtp": [],
"tcp": [],
"smtp_ex": [],
"mitm": [],
"hosts": [],
"pcap_sha256": "4b7a48e8f441fb492072b44c372592cbe8d9c1b74e939c7884b1eaccf81d24f2",
"dns": [],
"http_ex": [],
"domains": [],
"dead_hosts": [],
"sorted_pcap_sha256": "a51055196b17069b51d734b4b8f569716bfffeb78e4c8a50c7d0a31a0b636739",
"irc": [],
"https_ex": []
}Screenshots
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 32dce92af344378dbdb7778ec9d8e2c7 |
| SHA256 | 50a9fb9097e09692ecc3894f34621be28640963ba3c4f486cb9a9dc98f60d96c |
What will you do with pfBL.DLL?
To help other users, please let us know what you will do with pfBL.DLL:
What did other users do?
The poll result listed below shows what users chose to do with pfBL.DLL. 0% have voted for removal. Based on votes from 2 users.
| Votes | |||
|---|---|---|---|
| Keep | 100 % | 2 | |
| Remove | 0 % | 0 |
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
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Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
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