GridinSoft Threat Intelligence

RBCBizExternal.dll file report

Under review File reputation report
MD5 21b2203c5c97496f1f4d96e3ed535487
Latest seen 2021-11-30 21:15:19 (4 years ago)
First seen 2017-05-25 11:12:35 (9 years ago)
Size 799 KB
Product 看看影音

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-05-25 11:12:35 (9 years ago); latest analysis 2021-11-30 21:15:19 (4 years ago).

Publisher context

Company metadata: Copyright (c) 2015 Shenzhen Video Legend Network Technology Co.,Ltd.. Product metadata: 看看影音.

Digital signature

Signed by Shenzhen Video Legend Network Technology Co.,Ltd.. 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.

RBCBizExternal.dll is a Windows file recorded in the ThreatInfo database. It is associated with 看看影音. The reported company name is Copyright (c) 2015 Shenzhen Video Legend Network Technology Co.,Ltd.. The current detection status is Undefined, based on the latest analysis from 2021-11-30 21:15:19 (4 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.

Product Name: 看看影音
Company Name: Copyright (c) 2015 Shenzhen Video Legend Network Technology Co.,Ltd.
MD5: 21b2203c5c97496f1f4d96e3ed535487
Size: 799 KB
First Published: 2017-05-25 11:12:35 (9 years ago)
Latest Published: 2021-11-30 21:15:19 (4 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-11-30 21:15:19 (4 years ago)

The signature on RBCBizExternal.dll 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.

%appdata%\video legend\rbc\program
%profile%\dministrator\application data\video legend\rbc\program
%profile%\ser\application data\video legend\rbc\program
%appdata%\video legend\rbc
%appdata%\video legend\rbc\task
%profile%\tone\application data\video legend\rbc

ThreatInfo has observed RBCBizExternal.dll 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.

Windows 7 52.2%
Windows 10 33.7%
Windows XP 6.5%
Windows 8.1 5.4%
Windows 8 2.2%

The most common operating system signal for RBCBizExternal.dll is Windows 7 with 52.2% 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.

RBCBizExternal.dll is identified as pe for 32-bit systems. The subsystem is Windows GUI. 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 Windows GUI
Entry point 0x0005cd0a
Image base 0x10000000

PE Sections:

Sections 5
Raw data 811008

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

.text 471040 bytes · 58.1% of section data
MD5 a0a3740080bee98699c84aafddf31cae
.rdata 131584 bytes · 16.2% of section data
MD5 1e15d2b1910bbc9bfea5c2937f11dd53
.data 165888 bytes · 20.5% of section data
MD5 fed34336ab5615404c969cdc25d44f5c
.rsrc 8192 bytes · 1.0% of section data
MD5 7a8c3334da23d8d7ed64308a48aec08a
.reloc 34304 bytes · 4.2% of section data
MD5 3100d4cce999efa542779169b76b6dca

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 21b2203c5c97496f1f4d96e3ed535487.
  • 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.