GridinSoft Threat Intelligence

QDAntiDrv64_ev.sys file report

Under review File reputation report
MD5 da11408a57c0cd6f7d4a7e0dbe7a80b8
Latest seen 2022-08-06 23:50:30 (3 years ago)
First seen 2019-06-19 05:16:32 (6 years ago)
Size 72 KB
Publisher Tencent
Product 腾讯QQ
Signed by Tencent Technology(Shenzhen) Company Limited;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2019-06-19 05:16:32 (6 years ago); latest analysis 2022-08-06 23:50:30 (3 years ago).

Publisher context

Company metadata: Tencent. Product metadata: 腾讯QQ.

Digital signature

Signed by Tencent Technology(Shenzhen) Company Limited;Microsoft Windows Hardware Compatibility Publisher. The signature is reported as valid, but signed files can still be bundled or abused.

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.

File context

QDAntiDrv64_ev.sys is a Windows file recorded in the ThreatInfo database. It is associated with 腾讯QQ. The reported company name is Tencent. The current detection status is Undefined, based on the latest analysis from 2022-08-06 23:50:30 (3 years ago).

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.

File Details

Product Name: 腾讯QQ
Company Name: Tencent
MD5: da11408a57c0cd6f7d4a7e0dbe7a80b8
Size: 72 KB
First Published: 2019-06-19 05:16:32 (6 years ago)
Latest Published: 2022-08-06 23:50:30 (3 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2022-08-06 23:50:30 (3 years ago)

Overview

Signed By: Tencent Technology(Shenzhen) Company Limited;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on QDAntiDrv64_ev.sys 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.

Common Places:

%commondir%\tencent\qqprotect
%commonappdata%\tencent\qqprotect\autemp

ThreatInfo has observed QDAntiDrv64_ev.sys 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.

Geographic signal

Observed country distribution

ThreatInfo has seen QDAntiDrv64_ev.sys across 18 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country China
Share 49.0%
Low High activity

The strongest geographic signal for this file is China with 49.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 93.8%
Windows 7 3.5%
Windows Server 2008 R2 1.4%
Windows Server 2012 R2 0.7%
Windows 8.1 0.7%

The most common operating system signal for QDAntiDrv64_ev.sys is Windows 10 with 93.8% 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.

Analysis

QDAntiDrv64_ev.sys 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 0x0000f064
Image base 0x0000000000010000

PE Sections:

Sections 7
Raw data 55296

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

.text 44544 bytes · 80.6% of section data
MD5 49783ab7a51592736e752ccf47bbd264
.rdata 3584 bytes · 6.5% of section data
MD5 834153622d18d5fcf366a4c65d4d012f
.data 1024 bytes · 1.9% of section data
MD5 6d3f05c7040bd419ddaadfc2dc81e1af
.pdata 1536 bytes · 2.8% of section data
MD5 574d39ca353fe7004ee0c40a255974b5
INIT 3072 bytes · 5.6% of section data
Uncommon name
MD5 6fed6791e3d5c25b24e214d1ce6ffd43
.rsrc 1024 bytes · 1.9% of section data
MD5 5f74e4218ad19f717552d2dc76ff8f55
.reloc 512 bytes · 0.9% of section data
MD5 7507fa76087f4df530f4b128e7f8da0f

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 da11408a57c0cd6f7d4a7e0dbe7a80b8.
  • 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.