Categories: Malware

About “Win32/AddUser.AD” infection

The Win32/AddUser.AD is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Win32/AddUser.AD virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Dynamic (imported) function loading detected
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Attempts to restart the guest VM
  • Overwites local Administrator password
  • Uses suspicious command line tools or Windows utilities

How to determine Win32/AddUser.AD?


File Info:

name: 142D7A86DEF96B673750.mlwpath: /opt/CAPEv2/storage/binaries/6728472a86414d9095b0a49116c8a5b87a802f0f5e86a7d17519e01a8595f76bcrc32: B443D59Emd5: 142d7a86def96b6737507b4fcd6197dasha1: 427121efc8b78761553ce31a458bb35bdd507505sha256: 6728472a86414d9095b0a49116c8a5b87a802f0f5e86a7d17519e01a8595f76bsha512: 2772a398abb641428a48e6dfc084845cf01a64491218daa87776513ddce7f46893656af09ef3d23d25e452fff05d48191abceb49fe397a5adde5ba6200d688d5ssdeep: 12288:8ah6roDKakL7J18jDgsqUSGjtYLwC1QSLk6cXsagT:846rouazjDgsdSGUHZLk6Csactype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T18CC48C4969DE907ED0988A336E4FD6AB4395FCEE58210C7778FA780D96F0E41276C0B4sha3_384: d112c156a703d25f6f26a881b1cc927f3dec6ecf9a789d43c74e939baad7aa4bfbbc0bdbe7500a71763887c9540279b4ep_bytes: f8eb1099897c482639af312d203df7c7timestamp: 2013-10-29 12:52:12

Version Info:

FileVersion: 1.0.0.0FileDescription: 应用软件ProductName: 应用软件ProductVersion: 1.0.0.0LegalCopyright: 作者版权所有 请尊重并使用正版Comments: 应用软件Translation: 0x0804 0x04b0

Win32/AddUser.AD also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Heur.Kq0@rTDGtPob
FireEye Generic.mg.142d7a86def96b67
CAT-QuickHeal Trojan.MauvaiseRI.S5244370
McAfee Flyagent.d
Malwarebytes Trojan.Crypt
Zillya Trojan.Crypt.Win32.16289
K7AntiVirus Trojan ( 0040f54a1 )
BitDefender Gen:Trojan.Heur.Kq0@rTDGtPob
K7GW Trojan ( 0040f54a1 )
CrowdStrike win/malicious_confidence_70% (W)
BitDefenderTheta AI:Packer.ADF8FD031C
VirIT Trojan.Win32.Generic.BCYE
Cyren W32/Agent.KA.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/AddUser.AD
Baidu Win32.Trojan.AddUser.b
ClamAV Win.Trojan.Agent-1352090
Kaspersky HEUR:Trojan.Win32.Usad.gen
NANO-Antivirus Trojan.Win32.Crypt.ddrjau
Rising Ransom.Adduser!1.C371 (RDMK:cmRtazr4VBv//lyjaXJ1wM6/y8Lb)
Ad-Aware Gen:Trojan.Heur.Kq0@rTDGtPob
Sophos Generic ML PUA (PUA)
Comodo TrojWare.Win32.Agent.OSCF@5rs7jr
DrWeb Trojan.MulDrop5.48427
VIPRE Trojan.Win32.Generic.pak!cobra
McAfee-GW-Edition BehavesLike.Win32.Emotet.hc
SentinelOne Static AI – Malicious PE
Emsisoft Gen:Trojan.Heur.Kq0@rTDGtPob (B)
APEX Malicious
Jiangmin Trojan/MSIL.aoae
Avira TR/Spy.589824.172
Antiy-AVL Trojan/Generic.ASMalwS.B24DD3
Kingsoft Win32.Heur.KVM007.a.(kcloud)
Microsoft Trojan:Win32/Woreflint.A!cl
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
GData Gen:Trojan.Heur.Kq0@rTDGtPob
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Generic.C289575
Acronis suspicious
VBA32 Trojan.MSIL.Crypt
MAX malware (ai score=80)
Cylance Unsafe
Panda Trj/Genetic.gen
Tencent Malware.Win32.Gencirc.10b9cec7
Yandex Trojan.Crypt!YAflbmolSV4
Ikarus P2P-Worm.Win32.Palevo
Fortinet W32/CoinMiner.BELF!tr
AVG Win32:Malware-gen
Cybereason malicious.6def96
Avast Win32:Malware-gen

How to remove Win32/AddUser.AD?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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