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The steam_api64.dll (Steam Client API (buildbot_winslave007@WUS)) File Analysis

Updated 2 months ago
Checked by Malaware Check
steam_api64.dll

Technical Analysis

File Name steam_api64.dll
File Type
PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Scanner Version 1.0.210.174
Database Version 2025-03-14 08:00:56 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
299,296
File Size (bytes)
2025-03-14
Analysis Date

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File Identification

Hash Type Value Action
MD5
87a7f69881c430b4a7e5177e53fdf406
SHA1
e816b5974ef88c0f9f895dd391be7f1d6f7f6904
SHA256
f9aab811a73cb09be6202f0b995f91a792dbe3fbf9d3168d8e3b1d9f61f97cba
SHA512
320b1ebe9a27268c7d56bc194eeebb45cfed17e1cbf5bfbc6dac9ca621fee2cae0466d7ac6ff59a4c3eae39a051447fa9cc29aaa0a56d31b38b554973ae5ec09
ImpHash
120d97a7e7cd74d078e9535a647063ab

PE Analysis

Basic Information

▼
Image Base 0x180000000
Entry Point 0x1800dbd30
Compilation Time 2017-07-20 14:39:02
Checksum 0x0004c0ac (Actual: 0x0004c0ac)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Digital Signature Chain verification from CN=WUS! (serial:-57719131853525794810908100208052901995, sha1:64630c990ce6ee87c16c7f57d274526d62d8dafa) failed: The X.509 certificate provided is self-signed - "Common Name: WUS!"
Imports 7 libraries
KERNEL32, ntdll, PSAPI, SHELL32, SHLWAPI, USER32, WS2_32
Exports 89 functions
Resources 2 Resources
Sections 3 Sections

Version Information

▼
LegalCopyright Copyright (C) NisCkxU544c
InternalName Steam Client API
FileVersion 01.0.1.14
CompanyName Valve Corporation
ProductVersion 01.00.00.01
FileDescription Steam Client API (buildbot_winslave007@WUS)
Source Control ID 1337110
OriginalFilename steam_api.dll
ProductName Steam Client API
Translation 0x0409 0x04b0
CompanyName Valve Corporation
FileDescription Steam Client API
FileVersion 1, 0, 0, 1
InternalName Steam Client API
LegalCopyright Copyright (C) 2007
OriginalFilename steam_api.dll
ProductName Steam Client API
ProductVersion 1, 0, 0, 1
Translation 0x0409 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
WUS0 0x00001000 606,208 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
WUS1 0x00095000 294,912 bytes 291,328 bytes 7.93 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 51078AF4C40E389055F2B8157B40E500
.rsrc 0x000dd000 8,192 bytes 5,632 bytes 4.73 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE DAB1D07DFEA31BC7FEFC709752B202D0
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

▼
Total Resources: 2 (1,640 bytes)
Resource Type Count Total Size Percentage
RT_VERSION 2 1,640 bytes
100%

Certificate Chain Analysis

▼
Certificate Information
Product Steam Client API
Description Steam Client API (buildbot_winslave007@WUS)
File Version 01.0.1.14
Original Name steam_api.dll
Verification Status A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
Signers WUS!
Internal Name Steam Client API
Copyright Copyright (C) NisCkxU544c
Certificate Chain Summary
WUS! #1 Primary
Validity Period: 2014-07-01 08:00:00 → 2088-01-01 08:00:00
Signature Algorithm: 1.3.14.3.2.29
Serial Number: D4 93 B3 16 5B FB 8F B8 4D 4E 52 BE FA E4 67 95

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
Certificate Verification Status

Chain verification from CN=WUS! (serial:-57719131853525794810908100208052901995, sha1:64630c990ce6ee87c16c7f57d274526d62d8dafa) failed: The X.509 certificate provided is self-signed - "Common Name: WUS!"

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Remember: This is Result of Online Virus Scanner

Gridinsoft Anti-Malware has a much more powerful virus scanning engine. We recommend using it for a more precise diagnosis of infected systems. This brief guide will help you install our flagship product for more accurate diagnostics:

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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