GridinSoft Threat Intelligence

netfilter2.sys.old file report

Under review File reputation report
MD5 01700dc53f24cbd66b2d13754626f313
Latest seen 2022-01-29 21:39:20 (4 years ago)
First seen 2017-08-05 03:10:20 (8 years ago)
Size 76 KB

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Category context

Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2017-08-05 03:10:20 (8 years ago); latest analysis 2022-01-29 21:39:20 (4 years ago).

Publisher context

Company metadata: Windows (R) Win 7 DDK provider. Product metadata: Windows (R) Win 7 DDK driver.

Digital signature

Signed by Sidorov Vitaly Viktorovich IP. The signature is reported as valid, but signed files can still be bundled or abused.

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

Observed locations

ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.

Recommended action

What to do next

  1. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

netfilter2.sys.old is a Windows file recorded in the ThreatInfo database. It is associated with Windows (R) Win 7 DDK driver. The reported company name is Windows (R) Win 7 DDK provider. The current detection status is Undefined, based on the latest analysis from 2022-01-29 21:39:20 (4 years ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.

ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.

Product Name: Windows (R) Win 7 DDK driver
Company Name: Windows (R) Win 7 DDK provider
MD5: 01700dc53f24cbd66b2d13754626f313
Size: 76 KB
First Published: 2017-08-05 03:10:20 (8 years ago)
Latest Published: 2022-01-29 21:39:20 (4 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2022-01-29 21:39:20 (4 years ago)
Signed By: Sidorov Vitaly Viktorovich IP
Status: Valid

The signature on netfilter2.sys.old is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.

%system%\drivers
%profile%\downloads\nfsdk-demo-pf\bin\driver\wfp\windows7\amd64
%sysdrive%\$recycle.bin\s-1-5-21-3997485428-3716039175-1129044915-1000
%sysdrive%\$recycle.bin\s-1-5-21-4032632219-2308249558-4029746470-1000
%system%
%profile%\downloads\nfsdk-demo-pf\bin\driver\wfp\windows7
%sysdrive%\netfilter\bin\driver\wfp\windows7
%sysdrive%\downloads\nfsdk-demo-pf\bin\driver\wfp\windows7
%sysdrive%\temp\firewall\netfilter\bin\driver\wfp\windows7
%sysdrive%\$recycle.bin

ThreatInfo has observed netfilter2.sys.old in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

netfilter2.sys netfilter2_7.sys $RI1GZRD.sys $RZZJD02.sys netfilter2.sys.old

This hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.

Windows 7 93.4%
Windows 10 6.5%
Windows Vista 0.1%

The most common operating system signal for netfilter2.sys.old is Windows 7 with 93.4% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

netfilter2.sys.old is identified as pe for 64-bit systems. The subsystem is Native. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 64-bit
Subsystem Native
Entry point 0x00021064
Image base 0x0000000000010000

PE Sections:

Sections 7
Raw data 60416

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 48640 bytes · 80.5% of section data
MD5 1424a4647eb183733151dc786982799e
.rdata 2560 bytes · 4.2% of section data
MD5 00700c5bd176d05c034df85b28860b07
.data 2048 bytes · 3.4% of section data
MD5 929043900eed4e703db14675e57df038
.pdata 1536 bytes · 2.5% of section data
MD5 b849286e82381e268095cf525569011c
INIT 3584 bytes · 5.9% of section data
Uncommon name
MD5 ab469fda3af8b2a832527d7d8c72c684
.rsrc 1024 bytes · 1.7% of section data
MD5 231de8460a50e502ade25ce1509a0fdd
.reloc 1024 bytes · 1.7% of section data
MD5 22ec7bf3f1a9f693351f442264891827

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.

Report conclusion

This file is still under review

ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 01700dc53f24cbd66b2d13754626f313.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual. Use the PUP category to compare similar reports.