GridinSoft Threat Intelligence

atc.sys file report

Under review File reputation report
MD5 249f1e59f72cb458d3ccc3c6513aa842
Latest seen 2021-03-01 04:49:44 (5 years ago)
First seen 2019-08-02 12:41:16 (6 years ago)
Size 1 MB
Publisher BitDefender S.R.L. Bucharest, ROMANIA
Product BitDefender® AntiVirus
Signed by Bitdefender SRL;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2019-08-02 12:41:16 (6 years ago); latest analysis 2021-03-01 04:49:44 (5 years ago).

Publisher context

Company metadata: BitDefender S.R.L. Bucharest, ROMANIA. Product metadata: BitDefender® AntiVirus.

Digital signature

Signed by Bitdefender SRL;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

atc.sys is a Windows file recorded in the ThreatInfo database. It is associated with BitDefender® AntiVirus. The reported company name is BitDefender S.R.L. Bucharest, ROMANIA. The current detection status is Undefined, based on the latest analysis from 2021-03-01 04:49:44 (5 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: BitDefender® AntiVirus
Company Name: BitDefender S.R.L. Bucharest, ROMANIA
MD5: 249f1e59f72cb458d3ccc3c6513aa842
Size: 1 MB
First Published: 2019-08-02 12:41:16 (6 years ago)
Latest Published: 2021-03-01 04:49:44 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-03-01 04:49:44 (5 years ago)

Overview

Signed By: Bitdefender SRL;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on atc.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:

%programfiles%\tencent\qqpcmgr\12.3.26607.901\qmhips
%programfiles%\tencent\qqpcmgr\12.3.26609.901\qmhips

ThreatInfo has observed atc.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 atc.sys across 8 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Palestinian Territory
Share 12.5%
Low High activity

The strongest geographic signal for this file is Palestinian Territory with 12.5% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 7 50.0%
Windows 10 50.0%

The most common operating system signal for atc.sys is Windows 7 with 50.0% 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

atc.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 0x00001c50
Image base 0x0000000140000000

PE Sections:

Sections 9
Raw data 1486336

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

.text 1185280 bytes · 79.7% of section data
MD5 435e3f0ed74c9f7dfb1858c19e1282a7
.code 512 bytes · 0.0% of section data
Uncommon name
MD5 8959bc01f708e09ffa56fced05567c91
.rdata 119808 bytes · 8.1% of section data
MD5 5740fcf535dcb3c74d64a9a03dd8e5db
.data 83968 bytes · 5.6% of section data
MD5 d405b3ec4042e45a7570efc753bfed5d
.pdata 58368 bytes · 3.9% of section data
MD5 f77d53ff386fb68dfed449a067d36ca7
PAGE 18944 bytes · 1.3% of section data
Uncommon name
MD5 78d2664ce69bcef87cba45f96988ecf0
INIT 8704 bytes · 0.6% of section data
Uncommon name
MD5 924a6659826b831f69e2f10c145593d3
.rsrc 1024 bytes · 0.1% of section data
MD5 323c67e81836992daf4e14d29a007855
.reloc 9728 bytes · 0.7% of section data
MD5 6320328e84388e006a005224482ffa71

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 249f1e59f72cb458d3ccc3c6513aa842.
  • 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.