Malware

Doina.91 removal guide

Malware Removal

The Doina.91 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.

GridinSoft Anti-Malware

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.
6-day free trial available.

What Doina.91 virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Compression (or decompression)
  • Creates RWX memory
  • Attempts to connect to a dead IP:Port (5 unique times)
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Uses Windows utilities for basic functionality
  • Detects Sandboxie through the presence of a library
  • Detects Avast Antivirus through the presence of a library
  • Forces a created process to be the child of an unrelated process
  • Executed a process and injected code into it, probably while unpacking
  • Queries information on disks, possibly for anti-virtualization
  • Checks for the presence of known windows from debuggers and forensic tools
  • A process attempted to delay the analysis task by a long amount of time.
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Steals private information from local Internet browsers
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Writes a potential ransom message to disk
  • Attempts to modify proxy settings
  • Attempts to create or modify system certificates
  • Collects information to fingerprint the system
  • Uses suspicious command line tools or Windows utilities

Related domains:

iplogger.org
www.bing.com
ocsp.comodoca.com
ocsp.usertrust.com
ocsp.sectigo.com
ip-api.com
www.listincode.com
www.facebook.com
facebook.websmails.com
fbk.xiaomishop.me

How to determine Doina.91?


File Info:

crc32: 61A8C5C9
md5: 9ecc56c60274314e5d1c62f5f51fee28
name: 9ECC56C60274314E5D1C62F5F51FEE28.mlw
sha1: 3911b8fd0bb8cf4c5346ebe5b9785d0a833e004c
sha256: 2c32dcb54c310daf509527d74de8ab4cb7b45425fa543a5df22afd1e9bd00fd5
sha512: 6bd7d06eb752acd6e173848ddeb30447b49286aa7ecdfa810b1cacc1e71385ed8fab8cc11b22511fe5d6a398af6d5eb224cf8da0f47a63c51bea18478cc688ca
ssdeep: 98304:Ub3b5J93mDpjxT3/YIH+QeZEB107yh9w2kvpDa:Uv936T31H+QeZi107yQ75a
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Doina.91 also known as:

BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader38.63269
CynetMalicious (score: 100)
CAT-QuickHealTrojan.MSIL
ALYacTrojan.GenericKD.45873741
ZillyaTrojan.ScriptKD.JS.10
Cybereasonmalicious.602743
CyrenW32/MSIL_Kryptik.EDR.gen!Eldorado
ESET-NOD32multiple detections
APEXMalicious
AvastWin32:Trojan-gen
ClamAVWin.Packed.Bulz-9840169-0
KasperskyTrojan-Banker.Win32.Passteal.jx
BitDefenderGen:Variant.Doina.91
NANO-AntivirusRiskware.Win32.PSWTool.hqsnsl
MicroWorld-eScanGen:Variant.Doina.91
SophosGeneric ML PUA (PUA)
ComodoMalware@#ycyz7jtgjl8y
BitDefenderThetaGen:NN.ZexaF.34688.Omqaaim4Cskb
TrendMicroTROJ_GEN.R002C0WEB21
McAfee-GW-EditionBehavesLike.Win32.Generic.wc
FireEyeGeneric.mg.9ecc56c60274314e
EmsisoftGen:Variant.Doina.91 (B)
SentinelOneStatic AI – Suspicious SFX
AviraTR/Kryptik.bcrvk
Antiy-AVLTrojan/Generic.ASMalwS.2FFCE3E
MicrosoftBackdoor:Win32/Bladabindi!ml
GridinsoftTrojan.Win32.Agent.ns
ArcabitTrojan.Doina.91
ZoneAlarmTrojan-Banker.Win32.Passteal.jx
GDataWin32.Trojan-Stealer.Predator.I0I0PH
MAXmalware (ai score=80)
VBA32BScope.Trojan.Agentb
MalwarebytesMalware.AI.2872276590
TrendMicro-HouseCallTROJ_GEN.R002C0WEB21
RisingMalware.Obscure/Heur!1.A89F (CLASSIC:bWQ1Ooy945giSeIKb1ZOtBTwb+Q)
IkarusWin32.Outbreak
FortinetW32/Agent.OLG!tr.pws
AVGWin32:Trojan-gen

How to remove Doina.91?

Doina.91 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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