GridinSoft Threat Intelligence

QQSysMon.sys file report

Under review File reputation report
MD5 a7bfa61e2b2f66a9b8f34bc6749d1a4a
Latest seen 2021-03-01 04:27:19 (5 years ago)
First seen 2020-08-08 18:43:44 (5 years ago)
Size 95 KB
Publisher PC Manager
Product QQSYSMON
Signed by Tencent Technology(Shenzhen) Company Limited

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 2020-08-08 18:43:44 (5 years ago); latest analysis 2021-03-01 04:27:19 (5 years ago).

Publisher context

Company metadata: PC Manager. Product metadata: QQSYSMON.

Digital signature

Signed by Tencent Technology(Shenzhen) Company Limited. The signature is not reported as trusted and valid, which can indicate tampering, repackaging, or copied publisher data.

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

QQSysMon.sys is a Windows file recorded in the ThreatInfo database. It is associated with QQSYSMON. The reported company name is PC Manager. The current detection status is Undefined, based on the latest analysis from 2021-03-01 04:27:19 (5 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.

File Details

Product Name: QQSYSMON
Company Name: PC Manager
MD5: a7bfa61e2b2f66a9b8f34bc6749d1a4a
Size: 95 KB
First Published: 2020-08-08 18:43:44 (5 years ago)
Latest Published: 2021-03-01 04:27:19 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-03-01 04:27:19 (5 years ago)

Overview

Signed By: Tencent Technology(Shenzhen) Company Limited
Status: Invalid (digital signature could be stolen or file could be patched)

The signature on QQSysMon.sys is not reported as trusted and valid. Invalid or suspicious signature data can indicate tampering, repackaging, or an unrelated file using copied publisher information.

Common Places:

%programfiles%\tencent\qqpcmgr

ThreatInfo has observed QQSysMon.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 QQSysMon.sys across 3 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Poland
Share 33.3%
Low High activity

The strongest geographic signal for this file is Poland with 33.3% 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 66.7%
Windows 7 33.3%

The most common operating system signal for QQSysMon.sys is Windows 10 with 66.7% 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

QQSysMon.sys is identified as pe for 32-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 32-bit
Subsystem Native
Entry point 0x0001179c
Image base 0x00010000

PE Sections:

Sections 6
Raw data 79360

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

.text 54528 bytes · 68.7% of section data
MD5 218e49ec513dab27b92a13cab0ee5fa6
.rdata 2688 bytes · 3.4% of section data
MD5 fb88a52405d5bb54f386e478a807dae1
.data 12544 bytes · 15.8% of section data
MD5 74170cc8e00e5c057072819c76e5fb35
INIT 4736 bytes · 6.0% of section data
Uncommon name
MD5 9f0eec4c04bfa61996aba58ac36d2304
.rsrc 896 bytes · 1.1% of section data
MD5 6ef04f2238994a9ac511684c6d70dcdc
.reloc 3968 bytes · 5.0% of section data
MD5 e154186103835a2e5f9771259f70cca2

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 a7bfa61e2b2f66a9b8f34bc6749d1a4a.
  • 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.