Categories: Malware

What is “Win32/Kryptik.GUNB”?

The Win32/Kryptik.GUNB 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/Kryptik.GUNB virus can do?

Behavioural detection: Executable code extraction – unpacking
Creates RWX memory
Anomalous file deletion behavior detected (10+)
Dynamic (imported) function loading detected
Performs HTTP requests potentially not found in PCAP.
Reads data out of its own binary image
Drops a binary and executes it
Unconventionial language used in binary resources: Polish
The binary likely contains encrypted or compressed data.
Authenticode signature is invalid
Behavior consistent with a dropper attempting to download the next stage.
Attempts to modify proxy settings
Anomalous binary characteristics

How to determine Win32/Kryptik.GUNB?


File Info:
name: E8BB909462D81F66D09A.mlwpath: /opt/CAPEv2/storage/binaries/dba19b315d8440e175fabc5a662edc47ff8e28defa78121261ea38c5b47efcc0crc32: E099C6DFmd5: e8bb909462d81f66d09a5cef93d852fdsha1: e98b7c15f7ea9ad61973447c5839a87ddc178c70sha256: dba19b315d8440e175fabc5a662edc47ff8e28defa78121261ea38c5b47efcc0sha512: 7062867d2e65f76b38d7960fdbf7bf63a880a834acb4a06c630e32d56bf982873d4963051b8cd54cbfc6e8c8ca616f7e716208a26ebe8616ccb24824eef38059ssdeep: 768:GySlCfaNrByapGL56795hq49vVFkdBfd6:GySl7B5GL5e5hq49vVFkdBF6type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14BE22B53A3C54CB7F47142B58C6DDE301256B89AE6E40A8F368EF61669B234318F790Bsha3_384: 38fd6883fe440ee8b05ae0d593b06c62ba2326b4ea786b5af5d311f7214e035484572c19958fea14d9884b3db3fd9c6aep_bytes: 558bec6aff68e045400068502b400064timestamp: 2014-02-19 21:47:35
Version Info:
0: [No Data]

Win32/Kryptik.GUNB also known as:

Bkav	W32.AIDetect.malware2
Elastic	malicious (high confidence)
MicroWorld-eScan	Trojan.Upatre.Gen.3
FireEye	Generic.mg.e8bb909462d81f66
CAT-QuickHeal	Trojan.Kadena.B4
McAfee	Upatre-FACH!E8BB909462D8
Cylance	Unsafe
VIPRE	Trojan-Downloader.Win32.Upatre.tfl (v)
Sangfor	Suspicious.Win32.Save.a
K7AntiVirus	Trojan ( 004c861d1 )
BitDefender	Trojan.Upatre.Gen.3
K7GW	Trojan ( 004c861d1 )
Cybereason	malicious.462d81
BitDefenderTheta	Gen:NN.ZexaF.34182.cqX@a8@svbfG
VirIT	Trojan.Win32.Dropper.OT
Cyren	W32/Upatre.BR.gen!Eldorado
Symantec	Downloader.Upatre!gen5
ESET-NOD32	a variant of Win32/Kryptik.GUNB
Baidu	Win32.Trojan.Kryptik.jr
TrendMicro-HouseCall	TROJ_UPATRE.SM37
Paloalto	generic.ml
ClamAV	Win.Trojan.Generic-6335767-0
Kaspersky	HEUR:Trojan-Downloader.Win32.Small.gen
NANO-Antivirus	Trojan.Win32.Upatre.dttrnt
Rising	Spyware.Zbot!8.16B (TFE:dGZlOgWVsX4p2NdjIQ)
Emsisoft	Trojan.Upatre.Gen.3 (B)
Comodo	TrojWare.Win32.TrojanDownloader.Upatre.DOM@5st38w
DrWeb	Trojan.DownLoader14.47035
Zillya	Downloader.Upatre.Win32.42199
TrendMicro	TROJ_UPATRE.SM37
McAfee-GW-Edition	BehavesLike.Win32.Upatre.nm
Sophos	ML/PE-A + Troj/Dyreza-GT
APEX	Malicious
Jiangmin	TrojanDownloader.Upatre.rxs
Avira	TR/Dldr.Upatre.MR
MAX	malware (ai score=87)
Antiy-AVL	Trojan[Downloader]/Win32.Upatre
Microsoft	PWS:Win32/Zbot.MR!MTB
SUPERAntiSpyware	Trojan.Agent/Gen-Upatre
ZoneAlarm	HEUR:Trojan-Downloader.Win32.Small.gen
GData	Win32.Trojan.Kryptik.CA
Cynet	Malicious (score: 100)
AhnLab-V3	Trojan/Win32.Upatre.R157839
VBA32	BScope.TrojanSpy.Zbot
Malwarebytes	Trojan.Upatre
Panda	Trj/Genetic.gen
Tencent	Malware.Win32.Gencirc.116b53da
Yandex	Trojan.GenAsa!YUDY405GXbo
SentinelOne	Static AI – Malicious PE
Fortinet	W32/Kryptik.DQAA!tr
AVG	Win32:Malware-gen
Avast	Win32:Malware-gen
CrowdStrike	win/malicious_confidence_100% (W)