Categories: Trojan

What is “Win32/TrojanDownloader.Autoit.OUV”?

The Win32/TrojanDownloader.Autoit.OUV 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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What Win32/TrojanDownloader.Autoit.OUV virus can do?

  • Attempts to connect to a dead IP:Port (4 unique times)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Modifies system policies to prevent the launching of specific applications or executables
  • Attempts to disable UAC
  • Attempts to disable Windows Defender
  • Attempts to modify UAC prompt behavior
  • Attempts to modify Explorer settings to prevent hidden files from being displayed

Related domains:

z.whorecord.xyz
a.tomx.xyz
iplogger.org
apps.identrust.com
isrg.trustid.ocsp.identrust.com
redirector.gvt1.com
r4—sn-4g5ednss.gvt1.com

How to determine Win32/TrojanDownloader.Autoit.OUV?


File Info:

crc32: 66547CC0md5: d82cf866082b643af2e30bc6e2d2b5d5name: update.rarsha1: e4a416739bbde89e3fe7d613e6d421c282f2a22dsha256: a87fb882e248d4091541cd355ed3227801d014d83051f610edf08ac0c7a964a1sha512: b71ff0d14b59877dca3bf45a164b7d93a23e48520e055a1f7b25a021a257871633a5ec99182f65425b47f78b1e4020bd4d031299e4586ea22ba07e0c83339de4ssdeep: 49152:Pw80cTsjkWax5B45r1/3cRC/RFQkBvvblVyFjSV5ti:o8sjk65r1/MROJBvvryFOV5type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/TrojanDownloader.Autoit.OUV also known as:

MicroWorld-eScan Trojan.GenericKD.33745763
FireEye Generic.mg.d82cf866082b643a
CAT-QuickHeal Trojan.Swrort.A
Cylance Unsafe
BitDefender Trojan.GenericKD.33745763
Cybereason malicious.6082b6
TrendMicro BKDR_SWRORT.SM
BitDefenderTheta AI:Packer.9E33D48C17
APEX Malicious
Avast Win32:SwPatch [Wrm]
ClamAV Win.Dropper.Sodinokibi-7687226-0
GData Trojan.GenericKD.33745763
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Shellcode.ewfvwj
Tencent Win32.Trojan.Generic.Wqcy
Ad-Aware Trojan.GenericKD.33745763
Emsisoft Trojan.GenericKD.33745763 (B)
F-Secure Trojan.TR/Crypt.EPACK.Gen2
DrWeb Trojan.Swrort.1
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.tc
Trapmine suspicious.low.ml.score
Sophos Mal/EncPk-TZ
Ikarus Trojan.Win32.Swrort
MaxSecure Trojan.Malware.300983.susgen
Avira TR/Crypt.EPACK.Gen2
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.Rozena.ed
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D202EB63
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Trojan:Win32/Wacatac.C!ml
Acronis suspicious
ESET-NOD32 a variant of Win32/TrojanDownloader.Autoit.OUV
TrendMicro-HouseCall BKDR_SWRORT.SM
Rising Malware.Heuristic!ET#100% (RDMK:cmRtazorV3n82r8HsEP6iwip+C5k)
eGambit Unsafe.AI_Score_72%
Fortinet W32/Agent.1BD9!tr
Webroot W32.Malware.Gen
AVG Win32:SwPatch [Wrm]
Qihoo-360 HEUR/QVM10.1.EA9E.Malware.Gen

How to remove Win32/TrojanDownloader.Autoit.OUV?

  • 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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