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

Technical Analysis

File Name steam_api64.dll
File Type
PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Scanner Version 1.0.218.174
Database Version 2025-06-14 22:00:20 UTC

Clean File

No threats detected by our scanner

0%
Detection Rate
426,080
File Size (bytes)
2025-06-14
Analysis Date

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File Identification

Hash Type Value Action
MD5
af88d21718e877c7556467effbf99324
SHA1
a774691f4b375ef987e1a62da822db5b712a39c8
SHA256
96b67b7cca3133ca2b90762b8c36b92b91da35b03cf2c3a5632ec5cb9107af88
SHA512
48019f571a1d4c2bed906d07ceeeb71fa9349de7925938d743affa27351efe4648d04e70cc7478b05a68f9856e4086b0bc284d54eba048839a0f78495bec11e2
ImpHash
36ac90dd6953fff291486bad52bfea87

PE Analysis

Basic Information

Image Base 0x180000000
Entry Point 0x180109170
Compilation Time 2024-12-15 19:26:14
Checksum 0x00000000 (Actual: 0x0007557b)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Digital Signature The expected hash does not match the digest in SpcInfo
Imports 7 libraries
KERNEL32, ntdll, PSAPI, SHELL32, SHLWAPI, USER32, WS2_32
Exports 1249 functions
Resources 2 Resources
Sections 3 Sections

Version Information

LegalCopyright Copyright (C) NisCkxU544c
InternalName Steam Client API
FileVersion 01.0.1.54
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 737,280 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 0x000b5000 348,160 bytes 345,600 bytes 7.93 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D2D16A23F80B16CE1A61B123A773E0DA
.rsrc 0x0010a000 69,632 bytes 68,096 bytes 5.43 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 794003DD7D2E89CAD46DDB0BAFB3C9AE
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 01.0.1.54
Original Name steam_api.dll
Signing Date 09:27 PM 12/02/2024 (194 days ago)
Verification Status The digital signature of the object did not verify.
Signers Valve Corp.; DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1; DigiCert Trusted Root G4; DigiCert
Counter Signers DigiCert Timestamp 2024; DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA; DigiCert Trusted Root G4; DigiCert
Internal Name Steam Client API
Copyright Copyright (C) NisCkxU544c
Certificate Chain Summary
DigiCert Trusted Root G4 #1 Primary
Validity Period: 2022-08-01 00:00:00 → 2031-11-09 23:59:59
Signature Algorithm: sha384RSA
Serial Number: 0E 9B 18 8E F9 D0 2D E7 EF DB 50 E2 08 40 18 5A
DigiCert Trusted Root G4 #2 Chain
Validity Period: 2013-08-01 12:00:00 → 2038-01-15 12:00:00
Signature Algorithm: sha384RSA
Serial Number: 05 9B 1B 57 9E 8E 21 32 E2 39 07 BD A7 77 75 5C
DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA #3 Chain
Validity Period: 2022-03-23 00:00:00 → 2037-03-22 23:59:59
Signature Algorithm: sha256RSA
Serial Number: 07 36 37 B7 24 54 7C D8 47 AC FD 28 66 2A 5E 5B
DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 #4 Chain
Validity Period: 2021-04-29 00:00:00 → 2036-04-28 23:59:59
Signature Algorithm: sha384RSA
Serial Number: 08 AD 40 B2 60 D2 9C 4C 9F 5E CD A9 BD 93 AE D9
DigiCert Timestamp 2024 #5 Chain
Validity Period: 2024-09-26 00:00:00 → 2035-11-25 23:59:59
Signature Algorithm: sha256RSA
Serial Number: 0B AE 66 BC 5A BA 7F 95 87 C6 F9 E9 04 E3 33 04
Valve Corp. #6 Chain
Validity Period: 2024-10-12 00:00:00 → 2027-10-08 23:59:59
Signature Algorithm: sha256RSA
Serial Number: 06 FB 83 D0 BA 7C 64 B9 57 84 9B 76 A8 C1 DE 72

✓ 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

The expected hash does not match the digest in SpcInfo

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

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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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