Worm

How to remove “Worm:Win32/Yuner.A”?

Malware Removal

The Worm:Win32/Yuner.A 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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Gridinsoft Anti-Malware

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 Worm:Win32/Yuner.A virus can do?

  • A file was accessed within the Public folder.
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Attempts to identify installed AV products by registry key
  • Attempts to disable System Restore
  • Attempts to disable Windows File Protection aka System File Checker.
  • Touches a file containing cookies, possibly for information gathering
  • Attempts to modify or disable Security Center warnings
  • Attempts to modify Explorer settings to prevent file extensions from being displayed
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Yuner.A?


File Info:

name: E5B1D8E7F43BAFAC2969.mlw
path: /opt/CAPEv2/storage/binaries/c7aa207b300cf55b7d98b41c0c474b67d3f1cfdeccae2a5a0c158bd565cae666
crc32: A74CCB43
md5: e5b1d8e7f43bafac29693fda11e911f1
sha1: 7284826360eb109c578ad39bb5a0e6ec6f02f160
sha256: c7aa207b300cf55b7d98b41c0c474b67d3f1cfdeccae2a5a0c158bd565cae666
sha512: 3d6bca7a031916aa3a725b8b3c81c7f0f1032757fa49996ad6f1b55930e84cbeb02969f78c7b180af99f6dd2ccac1fc7ef92068fa32106ba009ce5c6b2630545
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJS:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI3
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1734412C2A6D95AE6ECC619771A23DFC41F55FE3169C60A10BA04B16F49F73C1AA13323
sha3_384: e4bbdda68267ca728bd3ca4449d2680524445ae97897f284be153c62fc7a39de4c7038937fc2a28b35c320914378061f
ep_bytes: 60be002046008dbe00f0f9ff57eb0b90
timestamp: 2007-09-10 14:57:50

Version Info:

FileDescription:
Virus.Name.: ., ., ., .
Nuyer.........: ...... .. ...... : ., ., ., .
Translation: 0x0809 0x04b0

Worm:Win32/Yuner.A also known as:

BkavW32.FakeDocD.fam.Trojan
LionicWorm.Win32.AutoIt.l3OL
AVGAutoIt:Dropper-D [Drp]
Elasticmalicious (moderate confidence)
MicroWorld-eScanTrojan.GenericKD.39797778
FireEyeGeneric.mg.e5b1d8e7f43bafac
CAT-QuickHealWorm.AutoIt.Yuner.A
SkyhighBehavesLike.Win32.Yahlover.dc
McAfeeW32/YahLover.worm.o
Cylanceunsafe
ZillyaWorm.AutoIt.Win32.16950
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaWorm:Win32/Yuner.23272628
K7GWTrojan ( 005506171 )
K7AntiVirusTrojan ( 005506171 )
BaiduAutoIt.Worm.Yuner.a
VirITWorm.Win32.AutoIt.R
SymantecW32.Badday.A
ESET-NOD32Win32/Yuner.B
CynetMalicious (score: 100)
APEXMalicious
ClamAVWin.Trojan.Generic-42
KasperskyWorm.Win32.AutoIt.r
BitDefenderTrojan.GenericKD.39797778
NANO-AntivirusTrojan.Script.Agent.dbvlfz
SUPERAntiSpywareTrojan.Agent/Gen-Yuner
AvastAutoIt:Dropper-D [Drp]
TencentWorm.Win32.AutoRun.f
TACHYONWorm/W32.AutoRun.524692
SophosW32/Sohana-CU
F-SecureWorm:W32/AutoIt.gen!A
DrWebWin32.HLLW.Autohit.18448
VIPRETrojan.GenericKD.39797778
TrendMicroWORM_AUTORUN.BWK
Trapminemalicious.high.ml.score
EmsisoftTrojan.GenericKD.39797778 (B)
IkarusWorm.Win32.AutoRun
GDataTrojan.GenericKD.39797778
JiangminTrojanDownloader.JS.hi
WebrootW32.Yuner.Gen
VaristW32/A-91e93787!Eldorado
AviraWORM/Autorun.125848
Antiy-AVLWorm/Win32.Yuner
KingsoftWin32.HeurC.KVM007.a
XcitiumWorm.Win32.AutoIt.~AN@1x7nl
ArcabitTrojan.Generic.D25F4412
ViRobotWorm.Win32.AutoIt.261440
ZoneAlarmWorm.Win32.AutoIt.r
MicrosoftWorm:Win32/Yuner.A
GoogleDetected
AhnLab-V3Win32/Hybris.worm.261539
BitDefenderThetaAI:Packer.682689CA1D
ALYacTrojan.GenericKD.39797778
MAXmalware (ai score=100)
VBA32Worm.Autoit.Autorunner
MalwarebytesGeneric.Trojan.Malpack.DDS
PandaW32/Sohanat.GW.worm
TrendMicro-HouseCallWORM_AUTORUN.BWK
RisingWorm.Win32.AutoIt.bz (CLASSIC)
YandexTrojan.Autoit.Gen.IN
MaxSecureWorm.AutoRun.but
FortinetW32/Agent.ALS!tr
ZonerWorm.Win32.22192
Cybereasonmalicious.7f43ba
DeepInstinctMALICIOUS
alibabacloudWorm:Win/Yuner.B

How to remove Worm:Win32/Yuner.A?

Worm:Win32/Yuner.A removal tool
  • 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.

About the author

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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