Worm

Worm:Win32/Vobfus.CI (file analysis)

Malware Removal

The Worm:Win32/Vobfus.CI 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 Worm:Win32/Vobfus.CI virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the embedded pe malware family
  • Anomalous binary characteristics
  • 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/Vobfus.CI?


File Info:

name: 99170C7BFAC3376EA7B1.mlw
path: /opt/CAPEv2/storage/binaries/548219fc3c9698823f81082506aba21a23ad1be1cb66888736d4170038722235
crc32: A5B2A9E3
md5: 99170c7bfac3376ea7b153ee7d541534
sha1: 6d6833850bf4f67b64fc77f0257d07ac239edb17
sha256: 548219fc3c9698823f81082506aba21a23ad1be1cb66888736d4170038722235
sha512: 38cd8cfb4d57161bb62f29f744779200ab977aeb409ea33efe0d00ea41b9928b0d43e36a0b8c43e8da5d5a8736cf94d233c5a697f5ea9451d9b55931595e3b3c
ssdeep: 3072:soZxEjRHU4Fo9Y1P8osUpJbPfIM7t0Sr:sa0RHUuomP8oxZfh2
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T144C392297791E23ED529CBF42D0A43B080A9AD3421E5AD13F7C64A1677F2DA79321783
sha3_384: 6244d3f33a87493e6ca870ef92cf5e60219994a04fd6382857595d53f8f5c7e3ab32a0edbddd07ce56499d83ba3270c5
ep_bytes: 68f4324000e8f0ffffff000000000000
timestamp: 2011-06-18 04:36:09

Version Info:

Translation: 0x0409 0x04b0
ProductName: CiUuCSmlYOjGxtTuBt
FileVersion: 1.00
ProductVersion: 1.00
InternalName: zjZLFFkeRE
OriginalFilename: zjZLFFkeRE.exe

Worm:Win32/Vobfus.CI also known as:

BkavW32.AIDetectMalware
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.VBKrypt.55
CAT-QuickHealTrojan.Vobfus.gen
SkyhighBehavesLike.Win32.VBObfus.cm
McAfeeVBObfus.g
MalwarebytesGeneric.Malware.AI.DDS
VIPREGen:Variant.VBKrypt.55
SangforSuspicious.Win32.Save.vb
K7AntiVirusEmailWorm ( 0054d10f1 )
K7GWEmailWorm ( 0054d10f1 )
Cybereasonmalicious.50bf4f
BaiduWin32.Worm.Pronny.d
VirITTrojan.Win32.VBKrypt.DQHI
SymantecW32.Changeup
ESET-NOD32a variant of Win32/AutoRun.VB.AHJ
APEXMalicious
ClamAVWin.Trojan.Changeup-6169544-0
KasperskyWorm.Win32.WBNA.ipa
BitDefenderGen:Variant.VBKrypt.55
NANO-AntivirusTrojan.Win32.Chinky.covkql
SUPERAntiSpywareTrojan.Agent/Gen-FakeAlert
AvastWin32:VB-ABDC [Drp]
RisingWorm.Win32.WBNA.e (CLASSIC)
EmsisoftGen:Variant.VBKrypt.55 (B)
F-SecureTrojan.TR/Chinky.6256
DrWebTrojan.VbCrypt.60
TrendMicroWORM_VOBFUS.SMHE
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.99170c7bfac3376e
SophosMal/VB-XV
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=86)
GDataWin32.Trojan.PSE.10I69CR
GoogleDetected
AviraTR/Chinky.6256
VaristW32/Vobfus.W.gen!Eldorado
Antiy-AVLWorm/Win32.WBNA.gen
XcitiumTrojWare.Win32.Diple.HJ@4ln2s1
ArcabitTrojan.VBKrypt.55
ZoneAlarmWorm.Win32.WBNA.ipa
MicrosoftWorm:Win32/Vobfus.CI
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.VBKrypt.R18935
Acronissuspicious
BitDefenderThetaAI:Packer.B645DEE820
ALYacGen:Variant.VBKrypt.55
TACHYONWorm/W32.VB-WBNA.118784
VBA32BScope.Worm.WBNA
Cylanceunsafe
PandaW32/Vobfus.GEP
TrendMicro-HouseCallWORM_VOBFUS.SMHE
TencentWorm.Win32.WBNA.hp
IkarusVirus.Worm.SuspectCRC
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/WBNA.AOW!worm
AVGWin32:VB-ABDC [Drp]
DeepInstinctMALICIOUS
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Worm:Win32/Vobfus.CI?

Worm:Win32/Vobfus.CI 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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