GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /opt/imunify360/venv/lib64/python3.11/site-packages/imav/malwarelib/plugins/detached_scan.py
"""
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.


This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
See the GNU General Public License for more details.


You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.

Copyright © 2019 Cloud Linux Software Inc.

This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
import shutil
import time
from logging import getLogger
from typing import Optional, Union

from defence360agent.contracts.hook_events import HookEvent
from defence360agent.contracts.messages import MessageType
from defence360agent.contracts.plugins import (
    MessageSink,
    MessageSource,
    expect,
)
from defence360agent.utils import Scope
from imav.malwarelib.config import (
    MalwareScanResourceType,
    MalwareScanType,
)
from imav.malwarelib.model import MalwareScan as MalwareScanModel
from imav.malwarelib.scan import (
    ScanAlreadyCompleteError,
    ScanInfoError,
)
from imav.malwarelib.scan.ai_bolit.detached import (
    AiBolitDetachedScan,
)
from imav.malwarelib.scan.mds.detached import MDSDetachedScan
from imav.malwarelib.scan.queue_supervisor_sync import QueueSupervisorSync
from imav.malwarelib.scan.scan_result import aggregate_result
from imav.malwarelib.utils.user_list import fill_results_owner

logger = getLogger(__name__)


class DetachedScanPlugin(MessageSink, MessageSource):
    PROCESSING_ORDER = MessageSink.ProcessingOrder.PRE_PROCESS_MESSAGE
    SCOPE = Scope.AV
    loop, sink = None, None
    results_cache = {}  # type: Dict[str, dict]

    async def create_source(self, loop, sink):
        self.loop = loop
        self.sink = sink

    async def create_sink(self, loop):
        pass

    @expect(MessageType.MalwareScan, async_lock=True)
    async def complete_scan(self, message):
        message_type = MalwareScanMessageInfo(message)

        if not message_type.is_detached:
            total_malicious = await self._count_total_malicious(message)
            message["summary"]["total_malicious"] = total_malicious
            return message
        elif message_type.is_summary:
            return await self._handle_summary(message)

        # message_type.is_result
        return await self._handle_results(message)

    async def _handle_summary(self, message):
        scan_id = message["summary"]["scanid"]
        # If summary arrives after results, results are read from cache
        if scan_id in self.results_cache:
            message["summary"]["completed"] = time.time()
            message["results"] = self.results_cache.pop(scan_id)
            total_malicious = await self._count_total_malicious(message)
            message["summary"]["total_malicious"] = total_malicious
            queued_scan = QueueSupervisorSync.queue.find(
                scanid=message["summary"]["scanid"]
            )
            if queued_scan:
                QueueSupervisorSync.queue.remove(queued_scan)
            await self._call_scan_finished_hook(
                message["summary"], queued_scan.args if queued_scan else {}
            )
        return message

    async def _handle_results(self, message):
        message = await self.aggregate_result(message)
        message_type = MalwareScanMessageInfo(message)
        summary = message["summary"]
        logger.info("Scan stopped")
        queued_scan = QueueSupervisorSync.queue.find(scanid=summary["scanid"])

        if message_type.summary_from_db is None:
            if queued_scan:
                summary["file_patterns"] = queued_scan.args["file_patterns"]
                summary["exclude_patterns"] = queued_scan.args[
                    "exclude_patterns"
                ]
                QueueSupervisorSync.queue.remove(queued_scan)
            if summary.get("path") or summary.get("error"):
                # Scan failed
                summary["total_malicious"] = 0
                await self._call_scan_finished_hook(summary, scan_args={})
                return message

            # Summary is not in DB yet, save results to cache
            scan_id = message["summary"]["scanid"]
            self.results_cache[scan_id] = message["results"]
            # Report an error to Sentry if cache grows
            cache_size = len(self.results_cache)
            if cache_size > 1:
                logger.error("MalwareScan cache size is %d", cache_size)
            return

        scan = message_type.summary_from_db
        summary["scanid"] = scan.scanid
        summary["path"] = scan.path
        summary["started"] = scan.started
        summary["completed"] = time.time()
        if summary.get("total_files") is None:
            summary["total_files"] = scan.total_resources

        summary["type"] = scan.type
        summary["error"] = summary.get("error", None)
        message["summary"] = summary

        total_malicious = await self._count_total_malicious(message)
        message["summary"]["total_malicious"] = total_malicious
        if queued_scan:
            summary["file_patterns"] = queued_scan.args["file_patterns"]
            summary["exclude_patterns"] = queued_scan.args["exclude_patterns"]
            QueueSupervisorSync.queue.remove(queued_scan)
        await self._call_scan_finished_hook(
            summary, queued_scan.args if queued_scan else {}
        )
        return message

    @staticmethod
    async def _count_total_malicious(message) -> int:
        return len(
            [
                k
                for k, v in message["results"].items()
                if v["hits"][0]["suspicious"] is False
            ]
        )

    async def _call_scan_finished_hook(self, summary, scan_args) -> None:
        scan_finished = HookEvent.MalwareScanningFinished(
            scan_id=summary["scanid"],
            scan_type=summary["type"],
            path=summary["path"],
            started=summary["started"],
            total_files=summary["total_files"],
            total_malicious=summary["total_malicious"],
            error=summary.get("error"),
            status="failed" if summary.get("error") else "ok",
            scan_params=scan_args,
            stats={
                **{
                    key: value
                    for key, value in summary.items()
                    if key
                    in (  # performance-related metrics
                        "scan_time",
                        "scan_time_hs",
                        "scan_time_preg",
                        "smart_time_hs",
                        "smart_time_preg",
                        "finder_time",
                        "cas_time",
                        "deobfuscate_time",
                        "mem_peak",
                    )
                },
                **{"total_files": summary["total_files"]},
            },
        )
        await self.sink.process_message(scan_finished)
        await self._recheck_scan_queue()

    @staticmethod
    def _get_detached_scan(
        resource_type: Optional[Union[str, MalwareScanResourceType]], scan_id
    ):
        return AiBolitDetachedScan(scan_id)

    @expect(MessageType.MalwareScanComplete)
    async def complete_detached_scan(self, message):
        scan_id = message.get("scan_id")
        resource_type = message.get("resource_type")
        detached_scan = self._get_detached_scan(resource_type, scan_id)

        try:
            scan_message = await detached_scan.complete()
        except ScanAlreadyCompleteError as err:
            # This happens when AV is woken up by AiBolit. See DEF-11078.
            logger.warning(
                "Cannot complete scan %s, assuming it is already complete"
                ":\n%s",
                scan_id,
                err,
            )
            return
        except ScanInfoError as err:
            logger.error(
                "Cannot complete %s scan %s, assuming it was not started:\n%s",
                detached_scan.RESOURCE_TYPE.value,
                scan_id,
                err,
            )
            return
        finally:
            shutil.rmtree(str(detached_scan.detached_dir), ignore_errors=True)

        await self.sink.process_message(scan_message)

    @classmethod
    async def aggregate_result(cls, message):
        message["results"] = aggregate_result(message["results"])
        await fill_results_owner(message["results"])
        return message

    async def _recheck_scan_queue(self):
        await self.sink.process_message(MessageType.MalwareScanQueueRecheck())


class MalwareScanMessageInfo:
    """A helper class that allows to receive information about scan
    from MalwareScan message.
    """

    def __init__(self, message):
        self.message = message
        self._summary_from_db = None
        self.scan_id = self.message["summary"]["scanid"]

    @property
    def is_detached(self):
        summary = self.message["summary"]
        return summary.get("type") in (
            MalwareScanType.ON_DEMAND,
            MalwareScanType.BACKGROUND,
            MalwareScanType.USER,
            None,
        )

    @property
    def is_summary(self):
        return self.message["results"] is None

    @property
    def summary_from_db(self):
        if not self._summary_from_db:
            summary_from_db = (
                MalwareScanModel.select()
                .where(MalwareScanModel.scanid == self.scan_id)
                .limit(1)
            )
            if summary_from_db:
                self._summary_from_db = summary_from_db[0]
        return self._summary_from_db


class DetachedScanPluginIm360(DetachedScanPlugin):
    SCOPE = Scope.IM360

    @staticmethod
    def _get_detached_scan(
        resource_type: Optional[Union[str, MalwareScanResourceType]], scan_id
    ):
        if resource_type is not None and (
            MalwareScanResourceType(resource_type)
            is MalwareScanResourceType.DB
        ):
            return MDSDetachedScan(scan_id)
        return AiBolitDetachedScan(scan_id)

    @expect(MessageType.MalwareDatabaseScan)
    async def complete_scan_db(self, message):
        queued_scan = QueueSupervisorSync.queue.find(scanid=message["scan_id"])
        if queued_scan:
            QueueSupervisorSync.queue.remove(queued_scan)

            scan_finished_event = HookEvent.MalwareScanningFinished(
                scan_id=message["scan_id"],
                scan_type=message["type"],
                path=message["path"],
            )
            await self.sink.process_message(scan_finished_event)

            await self._recheck_scan_queue()

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